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Finding the Third Proportional to 240.28 and 367.31

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Solution

The third proportional to 240.28 and 367.31 is: 561.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.28 : 367.31 = 367.31 : x
  2. Step 2: Convert to fraction form
    240.28/367.31 = 367.31/x
  3. Step 3: Cross multiply
    240.28x = 367.31 × 367.31
  4. Step 4: Simplify right side
    240.28x = 134,918.47
  5. Step 5: Solve for x
    x = 134,918.47/240.28
  6. Step 6: Final answer
    x = 561.50

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.