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Finding the Fourth Proportional to 488,714.10, 733,034.70 and 204,331.20

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Solution

The fourth proportional to 488,714.10, 733,034.70 and 204,331.20 is: 306,481.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,714.10 : 733,034.70 = 204,331.20 : x
  2. Step 2: Convert to fraction form
    488,714.10/733,034.70 = 204,331.20/x
  3. Step 3: Cross multiply
    488,714.10x = 733,034.70 × 204,331.20
  4. Step 4: Simplify right side
    488,714.10x = 149,781,859,892.64
  5. Step 5: Solve for x
    x = 149,781,859,892.64/488,714.10
  6. Step 6: Final answer
    x = 306,481.56

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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.