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Finding the Fourth Proportional to 1,789,718.92, 2,469,812.46 and 984,902.92

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Solution

The fourth proportional to 1,789,718.92, 2,469,812.46 and 984,902.92 is: 1,359,166.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789,718.92 : 2,469,812.46 = 984,902.92 : x
  2. Step 2: Convert to fraction form
    1,789,718.92/2,469,812.46 = 984,902.92/x
  3. Step 3: Cross multiply
    1,789,718.92x = 2,469,812.46 × 984,902.92
  4. Step 4: Simplify right side
    1,789,718.92x = 2,432,525,503,706.38
  5. Step 5: Solve for x
    x = 2,432,525,503,706.38/1,789,718.92
  6. Step 6: Final answer
    x = 1,359,166.22

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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.