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Finding the Fourth Proportional to 1,789,685.44, 2,469,766.32 and 984,869.44

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Solution

The fourth proportional to 1,789,685.44, 2,469,766.32 and 984,869.44 is: 1,359,120.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789,685.44 : 2,469,766.32 = 984,869.44 : x
  2. Step 2: Convert to fraction form
    1,789,685.44/2,469,766.32 = 984,869.44/x
  3. Step 3: Cross multiply
    1,789,685.44x = 2,469,766.32 × 984,869.44
  4. Step 4: Simplify right side
    1,789,685.44x = 2,432,397,366,334.84
  5. Step 5: Solve for x
    x = 2,432,397,366,334.84/1,789,685.44
  6. Step 6: Final answer
    x = 1,359,120.05

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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.