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Finding the Third Proportional to 231,939,965 and 324,438,672

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Solution

The third proportional to 231,939,965 and 324,438,672 is: 453,826,281.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,939,965 : 324,438,672 = 324,438,672 : x
  2. Step 2: Convert to fraction form
    231,939,965/324,438,672 = 324,438,672/x
  3. Step 3: Cross multiply
    231,939,965x = 324,438,672 × 324,438,672
  4. Step 4: Simplify right side
    231,939,965x = 105,260,451,889,123,584
  5. Step 5: Solve for x
    x = 105,260,451,889,123,584/231,939,965
  6. Step 6: Final answer
    x = 453,826,281.68

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.