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Finding the Third Proportional to 717,917,280 and 1,561,621,088

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Solution

The third proportional to 717,917,280 and 1,561,621,088 is: 3,396,854,331.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,917,280 : 1,561,621,088 = 1,561,621,088 : x
  2. Step 2: Convert to fraction form
    717,917,280/1,561,621,088 = 1,561,621,088/x
  3. Step 3: Cross multiply
    717,917,280x = 1,561,621,088 × 1,561,621,088
  4. Step 4: Simplify right side
    717,917,280x = 2,438,660,422,486,303,744
  5. Step 5: Solve for x
    x = 2,438,660,422,486,303,744/717,917,280
  6. Step 6: Final answer
    x = 3,396,854,331.86

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.