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Finding the Third Proportional to 269.44 and 528.19

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Solution

The third proportional to 269.44 and 528.19 is: 1,035.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.44 : 528.19 = 528.19 : x
  2. Step 2: Convert to fraction form
    269.44/528.19 = 528.19/x
  3. Step 3: Cross multiply
    269.44x = 528.19 × 528.19
  4. Step 4: Simplify right side
    269.44x = 278,982.04
  5. Step 5: Solve for x
    x = 278,982.04/269.44
  6. Step 6: Final answer
    x = 1,035.42

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Why These Related Problems?

These problems maintain the same ratio (1.96) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.