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Finding the Third Proportional to 621,728 and 1,115,524

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Solution

The third proportional to 621,728 and 1,115,524 is: 2,001,508.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,728 : 1,115,524 = 1,115,524 : x
  2. Step 2: Convert to fraction form
    621,728/1,115,524 = 1,115,524/x
  3. Step 3: Cross multiply
    621,728x = 1,115,524 × 1,115,524
  4. Step 4: Simplify right side
    621,728x = 1,244,393,794,576
  5. Step 5: Solve for x
    x = 1,244,393,794,576/621,728
  6. Step 6: Final answer
    x = 2,001,508.37

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.