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Finding the Fourth Proportional to 587,472.20, 881,227.46 and 279,657.40

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Solution

The fourth proportional to 587,472.20, 881,227.46 and 279,657.40 is: 419,495.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,472.20 : 881,227.46 = 279,657.40 : x
  2. Step 2: Convert to fraction form
    587,472.20/881,227.46 = 279,657.40/x
  3. Step 3: Cross multiply
    587,472.20x = 881,227.46 × 279,657.40
  4. Step 4: Simplify right side
    587,472.20x = 246,441,780,272.20
  5. Step 5: Solve for x
    x = 246,441,780,272.20/587,472.20
  6. Step 6: Final answer
    x = 419,495.22

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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.