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Finding the Third Proportional to 619.25 and 849

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Solution

The third proportional to 619.25 and 849 is: 1,163.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.25 : 849 = 849 : x
  2. Step 2: Convert to fraction form
    619.25/849 = 849/x
  3. Step 3: Cross multiply
    619.25x = 849 × 849
  4. Step 4: Simplify right side
    619.25x = 720,801
  5. Step 5: Solve for x
    x = 720,801/619.25
  6. Step 6: Final answer
    x = 1,163.99

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.