Question

In Portland, the tax on a property assessed at $590,000 is $6,490. If tax rates are proportional in this city, how much would the tax be on a property assessed at $710,000?

Answer 1

6490 * (71/59) = ?

Answer 2

If $6,490 is the tax for $590,000 then
one dollar will cost a tax of 590,000/6,490 = 11/1000 dollars.

If 1 dollar taxes 11/1000 dollars then $710,000 dollar will tax (11/1000*710000=7810 dollars.