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Finding the Fourth Proportional to 382,481.70, 573,722.55 and 344,427.90

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Solution

The fourth proportional to 382,481.70, 573,722.55 and 344,427.90 is: 516,641.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,481.70 : 573,722.55 = 344,427.90 : x
  2. Step 2: Convert to fraction form
    382,481.70/573,722.55 = 344,427.90/x
  3. Step 3: Cross multiply
    382,481.70x = 573,722.55 × 344,427.90
  4. Step 4: Simplify right side
    382,481.70x = 197,606,053,079.15
  5. Step 5: Solve for x
    x = 197,606,053,079.15/382,481.70
  6. Step 6: Final answer
    x = 516,641.85

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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.