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Finding the Third Proportional to 719,766 and 1,561,578.75

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Solution

The third proportional to 719,766 and 1,561,578.75 is: 3,387,945.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,766 : 1,561,578.75 = 1,561,578.75 : x
  2. Step 2: Convert to fraction form
    719,766/1,561,578.75 = 1,561,578.75/x
  3. Step 3: Cross multiply
    719,766x = 1,561,578.75 × 1,561,578.75
  4. Step 4: Simplify right side
    719,766x = 2,438,528,192,451.56
  5. Step 5: Solve for x
    x = 2,438,528,192,451.56/719,766
  6. Step 6: Final answer
    x = 3,387,945.79

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.