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Finding the Third Proportional to 609,612 and 1,339,888

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Solution

The third proportional to 609,612 and 1,339,888 is: 2,944,987.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,612 : 1,339,888 = 1,339,888 : x
  2. Step 2: Convert to fraction form
    609,612/1,339,888 = 1,339,888/x
  3. Step 3: Cross multiply
    609,612x = 1,339,888 × 1,339,888
  4. Step 4: Simplify right side
    609,612x = 1,795,299,852,544
  5. Step 5: Solve for x
    x = 1,795,299,852,544/609,612
  6. Step 6: Final answer
    x = 2,944,987.72

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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.