The population of Oregon is about 3.8 million. The population of the whole U. S. is about 318.9 million. Approximately what percentage of U. S. population lives in Oregon?

3,800,000 (over)

318,900,000

You can get rid of the five 0's from both because it will still be the same ratio

Then it will be ...

38 (over)

3189

Multiply 38 by 100 then divide by 3189 and you get ...

1.191596111633741%

Round it to the tenth to get 1.2%

Depending but 83.92

Step-by-step explanation:

Divide California's population by Oregon's population

318.9/3.8 is about 83.9210526316 ...

Rounded to the tenths about 83.92