James B. answered 05/23/16
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Set this up as a proportion.
$70,000 house value is to $1100 in taxes,
as "h" ... (unknown house value) is to $1400 in taxes
70,000 h
-------- = ---------
1100 1400
700 h
------ = ---------
11 1400
Cross multiply.
700(1400) = 11h
11h = 980,000
Divide both sides by 11
h = 89,090.91
So the unknown value of the house is $89,090.91