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Finding the Third Proportional to 297,378,975 and 644,173,134

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Solution

The third proportional to 297,378,975 and 644,173,134 is: 1,395,387,910.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,378,975 : 644,173,134 = 644,173,134 : x
  2. Step 2: Convert to fraction form
    297,378,975/644,173,134 = 644,173,134/x
  3. Step 3: Cross multiply
    297,378,975x = 644,173,134 × 644,173,134
  4. Step 4: Simplify right side
    297,378,975x = 414,959,026,567,381,952
  5. Step 5: Solve for x
    x = 414,959,026,567,381,952/297,378,975
  6. Step 6: Final answer
    x = 1,395,387,910.55

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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.