Finding the Fourth Proportional to 686,309.08, 947,160.18 and 441,512.44
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Solution
The fourth proportional to 686,309.08, 947,160.18 and 441,512.44 is: 609,321.68
Step by Step Solution
- Step 1: Write the proportion equation
686,309.08 : 947,160.18 = 441,512.44 : x - Step 2: Convert to fraction form
686,309.08/947,160.18 = 441,512.44/x - Step 3: Cross multiply
686,309.08x = 947,160.18 × 441,512.44 - Step 4: Simplify right side
686,309.08x = 418,183,002,142.64 - Step 5: Solve for x
x = 418,183,002,142.64/686,309.08 - Step 6: Final answer
x = 609,321.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.