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Finding the Fourth Proportional to 331,602.10, 497,403.15 and 231,874.90

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Solution

The fourth proportional to 331,602.10, 497,403.15 and 231,874.90 is: 347,812.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,602.10 : 497,403.15 = 231,874.90 : x
  2. Step 2: Convert to fraction form
    331,602.10/497,403.15 = 231,874.90/x
  3. Step 3: Cross multiply
    331,602.10x = 497,403.15 × 231,874.90
  4. Step 4: Simplify right side
    331,602.10x = 115,335,305,665.94
  5. Step 5: Solve for x
    x = 115,335,305,665.94/331,602.10
  6. Step 6: Final answer
    x = 347,812.35

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.