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Finding the Third Proportional to 264.75 and 520.75

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Solution

The third proportional to 264.75 and 520.75 is: 1,024.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.75 : 520.75 = 520.75 : x
  2. Step 2: Convert to fraction form
    264.75/520.75 = 520.75/x
  3. Step 3: Cross multiply
    264.75x = 520.75 × 520.75
  4. Step 4: Simplify right side
    264.75x = 271,180.56
  5. Step 5: Solve for x
    x = 271,180.56/264.75
  6. Step 6: Final answer
    x = 1,024.29

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.