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Finding the Third Proportional to 348 and 748.88

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Solution

The third proportional to 348 and 748.88 is: 1,611.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    348 : 748.88 = 748.88 : x
  2. Step 2: Convert to fraction form
    348/748.88 = 748.88/x
  3. Step 3: Cross multiply
    348x = 748.88 × 748.88
  4. Step 4: Simplify right side
    348x = 560,813.77
  5. Step 5: Solve for x
    x = 560,813.77/348
  6. Step 6: Final answer
    x = 1,611.53

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.