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Finding the Third Proportional to 222 and 480.75

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Solution

The third proportional to 222 and 480.75 is: 1,041.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    222 : 480.75 = 480.75 : x
  2. Step 2: Convert to fraction form
    222/480.75 = 480.75/x
  3. Step 3: Cross multiply
    222x = 480.75 × 480.75
  4. Step 4: Simplify right side
    222x = 231,120.56
  5. Step 5: Solve for x
    x = 231,120.56/222
  6. Step 6: Final answer
    x = 1,041.08

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.