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Finding the Fourth Proportional to 488,634.40, 732,951.60 and 173,123.20

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Solution

The fourth proportional to 488,634.40, 732,951.60 and 173,123.20 is: 259,684.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,634.40 : 732,951.60 = 173,123.20 : x
  2. Step 2: Convert to fraction form
    488,634.40/732,951.60 = 173,123.20/x
  3. Step 3: Cross multiply
    488,634.40x = 732,951.60 × 173,123.20
  4. Step 4: Simplify right side
    488,634.40x = 126,890,926,437.12
  5. Step 5: Solve for x
    x = 126,890,926,437.12/488,634.40
  6. Step 6: Final answer
    x = 259,684.80

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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.