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Finding the Fourth Proportional to 351,930.80, 527,896.20 and 344,932.40

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Solution

The fourth proportional to 351,930.80, 527,896.20 and 344,932.40 is: 517,398.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,930.80 : 527,896.20 = 344,932.40 : x
  2. Step 2: Convert to fraction form
    351,930.80/527,896.20 = 344,932.40/x
  3. Step 3: Cross multiply
    351,930.80x = 527,896.20 × 344,932.40
  4. Step 4: Simplify right side
    351,930.80x = 182,088,503,216.88
  5. Step 5: Solve for x
    x = 182,088,503,216.88/351,930.80
  6. Step 6: Final answer
    x = 517,398.60

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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.