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Finding the Fourth Proportional to 352,006.40, 526,972.80 and 331,500.80

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Solution

The fourth proportional to 352,006.40, 526,972.80 and 331,500.80 is: 496,274.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,006.40 : 526,972.80 = 331,500.80 : x
  2. Step 2: Convert to fraction form
    352,006.40/526,972.80 = 331,500.80/x
  3. Step 3: Cross multiply
    352,006.40x = 526,972.80 × 331,500.80
  4. Step 4: Simplify right side
    352,006.40x = 174,691,904,778.24
  5. Step 5: Solve for x
    x = 174,691,904,778.24/352,006.40
  6. Step 6: Final answer
    x = 496,274.80

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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.