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Finding the Third Proportional to 534,458 and 821,847

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Solution

The third proportional to 534,458 and 821,847 is: 1,263,770.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,458 : 821,847 = 821,847 : x
  2. Step 2: Convert to fraction form
    534,458/821,847 = 821,847/x
  3. Step 3: Cross multiply
    534,458x = 821,847 × 821,847
  4. Step 4: Simplify right side
    534,458x = 675,432,491,409
  5. Step 5: Solve for x
    x = 675,432,491,409/534,458
  6. Step 6: Final answer
    x = 1,263,770.94

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.