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Finding the Third Proportional to 348 and 764

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Solution

The third proportional to 348 and 764 is: 1,677.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    348 : 764 = 764 : x
  2. Step 2: Convert to fraction form
    348/764 = 764/x
  3. Step 3: Cross multiply
    348x = 764 × 764
  4. Step 4: Simplify right side
    348x = 583,696
  5. Step 5: Solve for x
    x = 583,696/348
  6. Step 6: Final answer
    x = 1,677.29

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These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.