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Finding the Third Proportional to 396,540,922 and 858,960,116

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Solution

The third proportional to 396,540,922 and 858,960,116 is: 1,860,621,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,540,922 : 858,960,116 = 858,960,116 : x
  2. Step 2: Convert to fraction form
    396,540,922/858,960,116 = 858,960,116/x
  3. Step 3: Cross multiply
    396,540,922x = 858,960,116 × 858,960,116
  4. Step 4: Simplify right side
    396,540,922x = 737,812,480,878,733,440
  5. Step 5: Solve for x
    x = 737,812,480,878,733,440/396,540,922
  6. Step 6: Final answer
    x = 1,860,621,287.60

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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.