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Finding the Third Proportional to 362.75 and 542.75

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Solution

The third proportional to 362.75 and 542.75 is: 812.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.75 : 542.75 = 542.75 : x
  2. Step 2: Convert to fraction form
    362.75/542.75 = 542.75/x
  3. Step 3: Cross multiply
    362.75x = 542.75 × 542.75
  4. Step 4: Simplify right side
    362.75x = 294,577.56
  5. Step 5: Solve for x
    x = 294,577.56/362.75
  6. Step 6: Final answer
    x = 812.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.