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Finding the Fourth Proportional to 1,789,704.88, 2,469,793.13 and 984,888.88

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Solution

The fourth proportional to 1,789,704.88, 2,469,793.13 and 984,888.88 is: 1,359,146.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789,704.88 : 2,469,793.13 = 984,888.88 : x
  2. Step 2: Convert to fraction form
    1,789,704.88/2,469,793.13 = 984,888.88/x
  3. Step 3: Cross multiply
    1,789,704.88x = 2,469,793.13 × 984,888.88
  4. Step 4: Simplify right side
    1,789,704.88x = 2,432,471,789,637.39
  5. Step 5: Solve for x
    x = 2,432,471,789,637.39/1,789,704.88
  6. Step 6: Final answer
    x = 1,359,146.87

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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.