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Finding the Fourth Proportional to 412,429.59, 618,691.12 and 370,049.29

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Solution

The fourth proportional to 412,429.59, 618,691.12 and 370,049.29 is: 555,115.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,429.59 : 618,691.12 = 370,049.29 : x
  2. Step 2: Convert to fraction form
    412,429.59/618,691.12 = 370,049.29/x
  3. Step 3: Cross multiply
    412,429.59x = 618,691.12 × 370,049.29
  4. Step 4: Simplify right side
    412,429.59x = 228,946,209,685.31
  5. Step 5: Solve for x
    x = 228,946,209,685.31/412,429.59
  6. Step 6: Final answer
    x = 555,115.87

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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.