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Finding the Third Proportional to 351.49 and 760.36

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Solution

The third proportional to 351.49 and 760.36 is: 1,644.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.49 : 760.36 = 760.36 : x
  2. Step 2: Convert to fraction form
    351.49/760.36 = 760.36/x
  3. Step 3: Cross multiply
    351.49x = 760.36 × 760.36
  4. Step 4: Simplify right side
    351.49x = 578,146.38
  5. Step 5: Solve for x
    x = 578,146.38/351.49
  6. Step 6: Final answer
    x = 1,644.83

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.