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Finding the Third Proportional to 441.75 and 480.56

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Solution

The third proportional to 441.75 and 480.56 is: 522.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.75 : 480.56 = 480.56 : x
  2. Step 2: Convert to fraction form
    441.75/480.56 = 480.56/x
  3. Step 3: Cross multiply
    441.75x = 480.56 × 480.56
  4. Step 4: Simplify right side
    441.75x = 230,940.32
  5. Step 5: Solve for x
    x = 230,940.32/441.75
  6. Step 6: Final answer
    x = 522.79

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.