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Finding the Third Proportional to 354,925.13 and 516,187.69

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Solution

The third proportional to 354,925.13 and 516,187.69 is: 750,720.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,925.13 : 516,187.69 = 516,187.69 : x
  2. Step 2: Convert to fraction form
    354,925.13/516,187.69 = 516,187.69/x
  3. Step 3: Cross multiply
    354,925.13x = 516,187.69 × 516,187.69
  4. Step 4: Simplify right side
    354,925.13x = 266,449,728,726.60
  5. Step 5: Solve for x
    x = 266,449,728,726.60/354,925.13
  6. Step 6: Final answer
    x = 750,720.95

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.