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Finding the Third Proportional to 348 and 476.25

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Solution

The third proportional to 348 and 476.25 is: 651.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    348 : 476.25 = 476.25 : x
  2. Step 2: Convert to fraction form
    348/476.25 = 476.25/x
  3. Step 3: Cross multiply
    348x = 476.25 × 476.25
  4. Step 4: Simplify right side
    348x = 226,814.06
  5. Step 5: Solve for x
    x = 226,814.06/348
  6. Step 6: Final answer
    x = 651.76

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.