Select the option that is related to the third number in the same way as the second number is related to the first number.
18 : 323 :: 38 : ?
18 : 323
$$ 18^2 - 1 = 324 - 1 = 323 $$
38 : ?
$$ 38^2 - 1 = 1444 - 1 = 1443 $$
Thus , 18 : 323 :: 38 : 1443
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