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Finding the Third Proportional to 269,421.75 and 449,016.75

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Solution

The third proportional to 269,421.75 and 449,016.75 is: 748,328.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,421.75 : 449,016.75 = 449,016.75 : x
  2. Step 2: Convert to fraction form
    269,421.75/449,016.75 = 449,016.75/x
  3. Step 3: Cross multiply
    269,421.75x = 449,016.75 × 449,016.75
  4. Step 4: Simplify right side
    269,421.75x = 201,616,041,780.56
  5. Step 5: Solve for x
    x = 201,616,041,780.56/269,421.75
  6. Step 6: Final answer
    x = 748,328.75

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.