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Finding the Fourth Proportional to 488,371.80, 733,335.30 and 331,296.60

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Solution

The fourth proportional to 488,371.80, 733,335.30 and 331,296.60 is: 497,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,371.80 : 733,335.30 = 331,296.60 : x
  2. Step 2: Convert to fraction form
    488,371.80/733,335.30 = 331,296.60/x
  3. Step 3: Cross multiply
    488,371.80x = 733,335.30 × 331,296.60
  4. Step 4: Simplify right side
    488,371.80x = 242,951,491,549.98
  5. Step 5: Solve for x
    x = 242,951,491,549.98/488,371.80
  6. Step 6: Final answer
    x = 497,472.40

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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.