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Finding the Third Proportional to 199,469 and 437,689

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Solution

The third proportional to 199,469 and 437,689 is: 960,408.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,469 : 437,689 = 437,689 : x
  2. Step 2: Convert to fraction form
    199,469/437,689 = 437,689/x
  3. Step 3: Cross multiply
    199,469x = 437,689 × 437,689
  4. Step 4: Simplify right side
    199,469x = 191,571,660,721
  5. Step 5: Solve for x
    x = 191,571,660,721/199,469
  6. Step 6: Final answer
    x = 960,408.19

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.