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Finding the Fourth Proportional to 625,706.62, 938,558.78 and 541,215.52

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Solution

The fourth proportional to 625,706.62, 938,558.78 and 541,215.52 is: 811,822.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,706.62 : 938,558.78 = 541,215.52 : x
  2. Step 2: Convert to fraction form
    625,706.62/938,558.78 = 541,215.52/x
  3. Step 3: Cross multiply
    625,706.62x = 938,558.78 × 541,215.52
  4. Step 4: Simplify right side
    625,706.62x = 507,962,578,168.27
  5. Step 5: Solve for x
    x = 507,962,578,168.27/625,706.62
  6. Step 6: Final answer
    x = 811,822.29

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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.