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Finding the Fourth Proportional to 625,358.40, 935,795.31 and 541,407.30

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Solution

The fourth proportional to 625,358.40, 935,795.31 and 541,407.30 is: 810,169.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,358.40 : 935,795.31 = 541,407.30 : x
  2. Step 2: Convert to fraction form
    625,358.40/935,795.31 = 541,407.30/x
  3. Step 3: Cross multiply
    625,358.40x = 935,795.31 × 541,407.30
  4. Step 4: Simplify right side
    625,358.40x = 506,646,412,139.76
  5. Step 5: Solve for x
    x = 506,646,412,139.76/625,358.40
  6. Step 6: Final answer
    x = 810,169.68

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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.