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Finding the Third Proportional to 323,769 and 711,782

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Solution

The third proportional to 323,769 and 711,782 is: 1,564,799.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,769 : 711,782 = 711,782 : x
  2. Step 2: Convert to fraction form
    323,769/711,782 = 711,782/x
  3. Step 3: Cross multiply
    323,769x = 711,782 × 711,782
  4. Step 4: Simplify right side
    323,769x = 506,633,615,524
  5. Step 5: Solve for x
    x = 506,633,615,524/323,769
  6. Step 6: Final answer
    x = 1,564,799.64

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.