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Finding the Third Proportional to 355.75 and 481.88

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Solution

The third proportional to 355.75 and 481.88 is: 652.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.75 : 481.88 = 481.88 : x
  2. Step 2: Convert to fraction form
    355.75/481.88 = 481.88/x
  3. Step 3: Cross multiply
    355.75x = 481.88 × 481.88
  4. Step 4: Simplify right side
    355.75x = 232,203.52
  5. Step 5: Solve for x
    x = 232,203.52/355.75
  6. Step 6: Final answer
    x = 652.72

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.