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Finding the Fourth Proportional to 488,453.60, 732,687.96 and 172,689.68

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Solution

The fourth proportional to 488,453.60, 732,687.96 and 172,689.68 is: 259,037.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,453.60 : 732,687.96 = 172,689.68 : x
  2. Step 2: Convert to fraction form
    488,453.60/732,687.96 = 172,689.68/x
  3. Step 3: Cross multiply
    488,453.60x = 732,687.96 × 172,689.68
  4. Step 4: Simplify right side
    488,453.60x = 126,527,649,352.25
  5. Step 5: Solve for x
    x = 126,527,649,352.25/488,453.60
  6. Step 6: Final answer
    x = 259,037.19

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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.