The proportion <em>can </em>look like this (there are other ways to write an equal proportion but this is just one of the ways you could go about it :)
Ken grew .425 of an inch more than sang because 4/5 is .8 and 3/8 is .375 what you do is you take those two numbers and subtract the smaller one from the bigger one and you get .425 and ken had the bigger growth. plz rate me brainliest