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Finding the Third Proportional to 366,939 and 516,730.75

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Solution

The third proportional to 366,939 and 516,730.75 is: 727,670.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,939 : 516,730.75 = 516,730.75 : x
  2. Step 2: Convert to fraction form
    366,939/516,730.75 = 516,730.75/x
  3. Step 3: Cross multiply
    366,939x = 516,730.75 × 516,730.75
  4. Step 4: Simplify right side
    366,939x = 267,010,667,995.56
  5. Step 5: Solve for x
    x = 267,010,667,995.56/366,939
  6. Step 6: Final answer
    x = 727,670.45

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.