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Finding the Third Proportional to 269.75 and 476.50

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Solution

The third proportional to 269.75 and 476.50 is: 841.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.75 : 476.50 = 476.50 : x
  2. Step 2: Convert to fraction form
    269.75/476.50 = 476.50/x
  3. Step 3: Cross multiply
    269.75x = 476.50 × 476.50
  4. Step 4: Simplify right side
    269.75x = 227,052.25
  5. Step 5: Solve for x
    x = 227,052.25/269.75
  6. Step 6: Final answer
    x = 841.71

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.