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Finding the Fourth Proportional to 363,543.75, 544,834.48 and 278,980.76

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Solution

The fourth proportional to 363,543.75, 544,834.48 and 278,980.76 is: 418,101.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,543.75 : 544,834.48 = 278,980.76 : x
  2. Step 2: Convert to fraction form
    363,543.75/544,834.48 = 278,980.76/x
  3. Step 3: Cross multiply
    363,543.75x = 544,834.48 × 278,980.76
  4. Step 4: Simplify right side
    363,543.75x = 151,998,337,304.61
  5. Step 5: Solve for x
    x = 151,998,337,304.61/363,543.75
  6. Step 6: Final answer
    x = 418,101.91

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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.