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Finding the Third Proportional to 218,729,952 and 516,332,672

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Solution

The third proportional to 218,729,952 and 516,332,672 is: 1,218,851,948.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,729,952 : 516,332,672 = 516,332,672 : x
  2. Step 2: Convert to fraction form
    218,729,952/516,332,672 = 516,332,672/x
  3. Step 3: Cross multiply
    218,729,952x = 516,332,672 × 516,332,672
  4. Step 4: Simplify right side
    218,729,952x = 266,599,428,174,659,584
  5. Step 5: Solve for x
    x = 266,599,428,174,659,584/218,729,952
  6. Step 6: Final answer
    x = 1,218,851,948.43

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.