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Finding the Third Proportional to 441,873 and 691,245

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Solution

The third proportional to 441,873 and 691,245 is: 1,081,350.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,873 : 691,245 = 691,245 : x
  2. Step 2: Convert to fraction form
    441,873/691,245 = 691,245/x
  3. Step 3: Cross multiply
    441,873x = 691,245 × 691,245
  4. Step 4: Simplify right side
    441,873x = 477,819,650,025
  5. Step 5: Solve for x
    x = 477,819,650,025/441,873
  6. Step 6: Final answer
    x = 1,081,350.64

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.