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Finding the Third Proportional to 231.19 and 475.88

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Solution

The third proportional to 231.19 and 475.88 is: 979.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.19 : 475.88 = 475.88 : x
  2. Step 2: Convert to fraction form
    231.19/475.88 = 475.88/x
  3. Step 3: Cross multiply
    231.19x = 475.88 × 475.88
  4. Step 4: Simplify right side
    231.19x = 226,457.02
  5. Step 5: Solve for x
    x = 226,457.02/231.19
  6. Step 6: Final answer
    x = 979.54

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.