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Finding the Third Proportional to 331.56 and 522.75

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Solution

The third proportional to 331.56 and 522.75 is: 824.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    331.56 : 522.75 = 522.75 : x
  2. Step 2: Convert to fraction form
    331.56/522.75 = 522.75/x
  3. Step 3: Cross multiply
    331.56x = 522.75 × 522.75
  4. Step 4: Simplify right side
    331.56x = 273,267.56
  5. Step 5: Solve for x
    x = 273,267.56/331.56
  6. Step 6: Final answer
    x = 824.18

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.