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Finding the Fourth Proportional to 541,127.40, 811,691.10 and 225,810.60

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Solution

The fourth proportional to 541,127.40, 811,691.10 and 225,810.60 is: 338,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,127.40 : 811,691.10 = 225,810.60 : x
  2. Step 2: Convert to fraction form
    541,127.40/811,691.10 = 225,810.60/x
  3. Step 3: Cross multiply
    541,127.40x = 811,691.10 × 225,810.60
  4. Step 4: Simplify right side
    541,127.40x = 183,288,454,305.66
  5. Step 5: Solve for x
    x = 183,288,454,305.66/541,127.40
  6. Step 6: Final answer
    x = 338,715.90

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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.