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Finding the Fourth Proportional to 331,603.43, 497,487.15 and 106,987.59

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Solution

The fourth proportional to 331,603.43, 497,487.15 and 106,987.59 is: 160,507.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,603.43 : 497,487.15 = 106,987.59 : x
  2. Step 2: Convert to fraction form
    331,603.43/497,487.15 = 106,987.59/x
  3. Step 3: Cross multiply
    331,603.43x = 497,487.15 × 106,987.59
  4. Step 4: Simplify right side
    331,603.43x = 53,224,951,234.47
  5. Step 5: Solve for x
    x = 53,224,951,234.47/331,603.43
  6. Step 6: Final answer
    x = 160,507.85

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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.