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Finding the Third Proportional to 287,491,154 and 625,353,732

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Solution

The third proportional to 287,491,154 and 625,353,732 is: 1,360,275,906.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,491,154 : 625,353,732 = 625,353,732 : x
  2. Step 2: Convert to fraction form
    287,491,154/625,353,732 = 625,353,732/x
  3. Step 3: Cross multiply
    287,491,154x = 625,353,732 × 625,353,732
  4. Step 4: Simplify right side
    287,491,154x = 391,067,290,126,327,808
  5. Step 5: Solve for x
    x = 391,067,290,126,327,808/287,491,154
  6. Step 6: Final answer
    x = 1,360,275,906.53

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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.