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Finding the Fourth Proportional to 1,979,793.96, 2,732,117.41 and 1,074,375.96

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Solution

The fourth proportional to 1,979,793.96, 2,732,117.41 and 1,074,375.96 is: 1,482,639.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,793.96 : 2,732,117.41 = 1,074,375.96 : x
  2. Step 2: Convert to fraction form
    1,979,793.96/2,732,117.41 = 1,074,375.96/x
  3. Step 3: Cross multiply
    1,979,793.96x = 2,732,117.41 × 1,074,375.96
  4. Step 4: Simplify right side
    1,979,793.96x = 2,935,321,251,540.88
  5. Step 5: Solve for x
    x = 2,935,321,251,540.88/1,979,793.96
  6. Step 6: Final answer
    x = 1,482,639.77

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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.