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The pronunciation of any word in English (or any language at all) is not Universal.  This is because there are many different dialects of The English Language — both throughout America, and also world-wide.  The pronunciations that are presented on GiveMeSomeEnglish!!! are based-upon a combination of both “common usage”, and the most neutral accent used in The International Common Tongue — a.k.a. “American English”.
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Disproportionate – For this word:  the “i” of the “Dis-” prefix is pronounced like an i-schaw;  the first “o” is pronounced like a u-schwa;  the second “o” is long; for the “-tion” suffix – the “yi” combination is pronounced like the un-voiced “sh” combination, and the third”o” is pronounced like an i-schwa (this is the standard pronunciation of this suffix in The Common Tongue); and for the “-ate” suffix – the “a” is a True Long “A”, the “t” is (usually) stopped, and the final “e” is silent (this is the standard pronunciation of this suffix in The Common Tongue).

– /dihs-pruh-POHR-shih-nih[t]/ – /də(ɪ)s.prə(ʌ).ˈpoɹ.ʃə(ɪ).ə(ɪ)[t]/ – Notice also that the stress is on the first syllable –

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Learn More About The Word “Disproportionate” On Wiktionary

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