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Finding the Fourth Proportional to 529,098.56, 730,158.08 and 287,385.16

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Solution

The fourth proportional to 529,098.56, 730,158.08 and 287,385.16 is: 396,592.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,098.56 : 730,158.08 = 287,385.16 : x
  2. Step 2: Convert to fraction form
    529,098.56/730,158.08 = 287,385.16/x
  3. Step 3: Cross multiply
    529,098.56x = 730,158.08 × 287,385.16
  4. Step 4: Simplify right side
    529,098.56x = 209,836,596,646.09
  5. Step 5: Solve for x
    x = 209,836,596,646.09/529,098.56
  6. Step 6: Final answer
    x = 396,592.64

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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.