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Finding the Fourth Proportional to 1,789,717.92, 2,469,811.08 and 984,901.92

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Solution

The fourth proportional to 1,789,717.92, 2,469,811.08 and 984,901.92 is: 1,359,164.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789,717.92 : 2,469,811.08 = 984,901.92 : x
  2. Step 2: Convert to fraction form
    1,789,717.92/2,469,811.08 = 984,901.92/x
  3. Step 3: Cross multiply
    1,789,717.92x = 2,469,811.08 × 984,901.92
  4. Step 4: Simplify right side
    1,789,717.92x = 2,432,521,674,729.27
  5. Step 5: Solve for x
    x = 2,432,521,674,729.27/1,789,717.92
  6. Step 6: Final answer
    x = 1,359,164.84

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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.