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Finding the Fourth Proportional to 354,747.60, 532,121.40 and 325,717.20

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Solution

The fourth proportional to 354,747.60, 532,121.40 and 325,717.20 is: 488,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,747.60 : 532,121.40 = 325,717.20 : x
  2. Step 2: Convert to fraction form
    354,747.60/532,121.40 = 325,717.20/x
  3. Step 3: Cross multiply
    354,747.60x = 532,121.40 × 325,717.20
  4. Step 4: Simplify right side
    354,747.60x = 173,321,092,468.08
  5. Step 5: Solve for x
    x = 173,321,092,468.08/354,747.60
  6. Step 6: Final answer
    x = 488,575.80

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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.