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Finding the Fourth Proportional to 541,167.90, 812,031.96 and 392,634.15

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Solution

The fourth proportional to 541,167.90, 812,031.96 and 392,634.15 is: 589,154.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,167.90 : 812,031.96 = 392,634.15 : x
  2. Step 2: Convert to fraction form
    541,167.90/812,031.96 = 392,634.15/x
  3. Step 3: Cross multiply
    541,167.90x = 812,031.96 × 392,634.15
  4. Step 4: Simplify right side
    541,167.90x = 318,831,478,387.43
  5. Step 5: Solve for x
    x = 318,831,478,387.43/541,167.90
  6. Step 6: Final answer
    x = 589,154.45

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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.