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Finding the Third Proportional to 492.33 and 761.91

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Solution

The third proportional to 492.33 and 761.91 is: 1,179.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    492.33 : 761.91 = 761.91 : x
  2. Step 2: Convert to fraction form
    492.33/761.91 = 761.91/x
  3. Step 3: Cross multiply
    492.33x = 761.91 × 761.91
  4. Step 4: Simplify right side
    492.33x = 580,501.13
  5. Step 5: Solve for x
    x = 580,501.13/492.33
  6. Step 6: Final answer
    x = 1,179.09

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These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.