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Finding the Fourth Proportional to 997.84, 1,496.65 and 267.48

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Solution

The fourth proportional to 997.84, 1,496.65 and 267.48 is: 401.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    997.84 : 1,496.65 = 267.48 : x
  2. Step 2: Convert to fraction form
    997.84/1,496.65 = 267.48/x
  3. Step 3: Cross multiply
    997.84x = 1,496.65 × 267.48
  4. Step 4: Simplify right side
    997.84x = 400,320.32
  5. Step 5: Solve for x
    x = 400,320.32/997.84
  6. Step 6: Final answer
    x = 401.19

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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.