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Finding the Third Proportional to 609,015 and 1,339,530

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Solution

The third proportional to 609,015 and 1,339,530 is: 2,946,299.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,015 : 1,339,530 = 1,339,530 : x
  2. Step 2: Convert to fraction form
    609,015/1,339,530 = 1,339,530/x
  3. Step 3: Cross multiply
    609,015x = 1,339,530 × 1,339,530
  4. Step 4: Simplify right side
    609,015x = 1,794,340,620,900
  5. Step 5: Solve for x
    x = 1,794,340,620,900/609,015
  6. Step 6: Final answer
    x = 2,946,299.55

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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.