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Finding the Third Proportional to 235.75 and 379.50

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Solution

The third proportional to 235.75 and 379.50 is: 610.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.75 : 379.50 = 379.50 : x
  2. Step 2: Convert to fraction form
    235.75/379.50 = 379.50/x
  3. Step 3: Cross multiply
    235.75x = 379.50 × 379.50
  4. Step 4: Simplify right side
    235.75x = 144,020.25
  5. Step 5: Solve for x
    x = 144,020.25/235.75
  6. Step 6: Final answer
    x = 610.90

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.