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Finding the Third Proportional to 396,540,902 and 858,960,076

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Solution

The third proportional to 396,540,902 and 858,960,076 is: 1,860,621,208.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,540,902 : 858,960,076 = 858,960,076 : x
  2. Step 2: Convert to fraction form
    396,540,902/858,960,076 = 858,960,076/x
  3. Step 3: Cross multiply
    396,540,902x = 858,960,076 × 858,960,076
  4. Step 4: Simplify right side
    396,540,902x = 737,812,412,161,925,760
  5. Step 5: Solve for x
    x = 737,812,412,161,925,760/396,540,902
  6. Step 6: Final answer
    x = 1,860,621,208.15

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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.