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Finding the Third Proportional to 787,271,215.38 and 1,691,375,605.79

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Solution

The third proportional to 787,271,215.38 and 1,691,375,605.79 is: 3,633,755,920.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,271,215.38 : 1,691,375,605.79 = 1,691,375,605.79 : x
  2. Step 2: Convert to fraction form
    787,271,215.38/1,691,375,605.79 = 1,691,375,605.79/x
  3. Step 3: Cross multiply
    787,271,215.38x = 1,691,375,605.79 × 1,691,375,605.79
  4. Step 4: Simplify right side
    787,271,215.38x = 2,860,751,439,851,679,744
  5. Step 5: Solve for x
    x = 2,860,751,439,851,679,744/787,271,215.38
  6. Step 6: Final answer
    x = 3,633,755,920.42

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.