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Finding the Fourth Proportional to 1,789,872.96, 2,469,467.34 and 1,015,375.26

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Solution

The fourth proportional to 1,789,872.96, 2,469,467.34 and 1,015,375.26 is: 1,400,901.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789,872.96 : 2,469,467.34 = 1,015,375.26 : x
  2. Step 2: Convert to fraction form
    1,789,872.96/2,469,467.34 = 1,015,375.26/x
  3. Step 3: Cross multiply
    1,789,872.96x = 2,469,467.34 × 1,015,375.26
  4. Step 4: Simplify right side
    1,789,872.96x = 2,507,436,042,414.01
  5. Step 5: Solve for x
    x = 2,507,436,042,414.01/1,789,872.96
  6. Step 6: Final answer
    x = 1,400,901.68

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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.