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Finding the Third Proportional to 516,066 and 781,884

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Solution

The third proportional to 516,066 and 781,884 is: 1,184,620.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,066 : 781,884 = 781,884 : x
  2. Step 2: Convert to fraction form
    516,066/781,884 = 781,884/x
  3. Step 3: Cross multiply
    516,066x = 781,884 × 781,884
  4. Step 4: Simplify right side
    516,066x = 611,342,589,456
  5. Step 5: Solve for x
    x = 611,342,589,456/516,066
  6. Step 6: Final answer
    x = 1,184,620.94

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.