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Finding the Fourth Proportional to 502,706.87, 693,730.58 and 374,219.92

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Solution

The fourth proportional to 502,706.87, 693,730.58 and 374,219.92 is: 516,419.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,706.87 : 693,730.58 = 374,219.92 : x
  2. Step 2: Convert to fraction form
    502,706.87/693,730.58 = 374,219.92/x
  3. Step 3: Cross multiply
    502,706.87x = 693,730.58 × 374,219.92
  4. Step 4: Simplify right side
    502,706.87x = 259,607,802,149.15
  5. Step 5: Solve for x
    x = 259,607,802,149.15/502,706.87
  6. Step 6: Final answer
    x = 516,419.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.