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Finding the Fourth Proportional to 488,404.40, 732,495.72 and 172,861.16

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Solution

The fourth proportional to 488,404.40, 732,495.72 and 172,861.16 is: 259,252.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,404.40 : 732,495.72 = 172,861.16 : x
  2. Step 2: Convert to fraction form
    488,404.40/732,495.72 = 172,861.16/x
  3. Step 3: Cross multiply
    488,404.40x = 732,495.72 × 172,861.16
  4. Step 4: Simplify right side
    488,404.40x = 126,620,059,854.24
  5. Step 5: Solve for x
    x = 126,620,059,854.24/488,404.40
  6. Step 6: Final answer
    x = 259,252.50

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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.