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Finding the Third Proportional to 691,884 and 1,519,976

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Solution

The third proportional to 691,884 and 1,519,976 is: 3,339,182.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,884 : 1,519,976 = 1,519,976 : x
  2. Step 2: Convert to fraction form
    691,884/1,519,976 = 1,519,976/x
  3. Step 3: Cross multiply
    691,884x = 1,519,976 × 1,519,976
  4. Step 4: Simplify right side
    691,884x = 2,310,327,040,576
  5. Step 5: Solve for x
    x = 2,310,327,040,576/691,884
  6. Step 6: Final answer
    x = 3,339,182.64

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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.