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500/2.3 = x/600 // - x/600
500/2.3-(x/600) = 0
217.39130435-1/600*x = 0 // - 217.39130435
-1/600*x = -217.39130435 // : -1/600
x = -217.39130435/(-1/600)
x = 130434.52174096
x = 130434.52174096
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