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Finding the Fourth Proportional to 529,102.93, 730,167.41 and 287,390.23

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Solution

The fourth proportional to 529,102.93, 730,167.41 and 287,390.23 is: 396,601.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,102.93 : 730,167.41 = 287,390.23 : x
  2. Step 2: Convert to fraction form
    529,102.93/730,167.41 = 287,390.23/x
  3. Step 3: Cross multiply
    529,102.93x = 730,167.41 × 287,390.23
  4. Step 4: Simplify right side
    529,102.93x = 209,842,979,898.40
  5. Step 5: Solve for x
    x = 209,842,979,898.40/529,102.93
  6. Step 6: Final answer
    x = 396,601.43

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1.5x scale

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.