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Finding the Fourth Proportional to 625,363.20, 938,505.60 and 251,654.40

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Solution

The fourth proportional to 625,363.20, 938,505.60 and 251,654.40 is: 377,667.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,363.20 : 938,505.60 = 251,654.40 : x
  2. Step 2: Convert to fraction form
    625,363.20/938,505.60 = 251,654.40/x
  3. Step 3: Cross multiply
    625,363.20x = 938,505.60 × 251,654.40
  4. Step 4: Simplify right side
    625,363.20x = 236,179,063,664.64
  5. Step 5: Solve for x
    x = 236,179,063,664.64/625,363.20
  6. Step 6: Final answer
    x = 377,667.03

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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.