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Finding the Third Proportional to 717,918 and 1,111,493.25

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Solution

The third proportional to 717,918 and 1,111,493.25 is: 1,720,833.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,918 : 1,111,493.25 = 1,111,493.25 : x
  2. Step 2: Convert to fraction form
    717,918/1,111,493.25 = 1,111,493.25/x
  3. Step 3: Cross multiply
    717,918x = 1,111,493.25 × 1,111,493.25
  4. Step 4: Simplify right side
    717,918x = 1,235,417,244,795.56
  5. Step 5: Solve for x
    x = 1,235,417,244,795.56/717,918
  6. Step 6: Final answer
    x = 1,720,833.36

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.