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Finding the Third Proportional to 234.75 and 609.75

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Solution

The third proportional to 234.75 and 609.75 is: 1,583.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.75 : 609.75 = 609.75 : x
  2. Step 2: Convert to fraction form
    234.75/609.75 = 609.75/x
  3. Step 3: Cross multiply
    234.75x = 609.75 × 609.75
  4. Step 4: Simplify right side
    234.75x = 371,795.06
  5. Step 5: Solve for x
    x = 371,795.06/234.75
  6. Step 6: Final answer
    x = 1,583.79

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.