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Finding the Third Proportional to 486,541 and 774,782

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Solution

The third proportional to 486,541 and 774,782 is: 1,233,785.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,541 : 774,782 = 774,782 : x
  2. Step 2: Convert to fraction form
    486,541/774,782 = 774,782/x
  3. Step 3: Cross multiply
    486,541x = 774,782 × 774,782
  4. Step 4: Simplify right side
    486,541x = 600,287,147,524
  5. Step 5: Solve for x
    x = 600,287,147,524/486,541
  6. Step 6: Final answer
    x = 1,233,785.33

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.