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Finding the Fourth Proportional to 1,789,758.08, 2,469,866.55 and 984,942.08

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Solution

The fourth proportional to 1,789,758.08, 2,469,866.55 and 984,942.08 is: 1,359,220.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789,758.08 : 2,469,866.55 = 984,942.08 : x
  2. Step 2: Convert to fraction form
    1,789,758.08/2,469,866.55 = 984,942.08/x
  3. Step 3: Cross multiply
    1,789,758.08x = 2,469,866.55 × 984,942.08
  4. Step 4: Simplify right side
    1,789,758.08x = 2,432,675,496,454.45
  5. Step 5: Solve for x
    x = 2,432,675,496,454.45/1,789,758.08
  6. Step 6: Final answer
    x = 1,359,220.29

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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.