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Finding the Fourth Proportional to 542,691.53, 748,959.21 and 301,052.18

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Solution

The fourth proportional to 542,691.53, 748,959.21 and 301,052.18 is: 415,476.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,691.53 : 748,959.21 = 301,052.18 : x
  2. Step 2: Convert to fraction form
    542,691.53/748,959.21 = 301,052.18/x
  3. Step 3: Cross multiply
    542,691.53x = 748,959.21 × 301,052.18
  4. Step 4: Simplify right side
    542,691.53x = 225,475,799,156.78
  5. Step 5: Solve for x
    x = 225,475,799,156.78/542,691.53
  6. Step 6: Final answer
    x = 415,476.91

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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.