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Finding the Fourth Proportional to 969.92, 1,454.93 and 267.23

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Solution

The fourth proportional to 969.92, 1,454.93 and 267.23 is: 400.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    969.92 : 1,454.93 = 267.23 : x
  2. Step 2: Convert to fraction form
    969.92/1,454.93 = 267.23/x
  3. Step 3: Cross multiply
    969.92x = 1,454.93 × 267.23
  4. Step 4: Simplify right side
    969.92x = 388,805.25
  5. Step 5: Solve for x
    x = 388,805.25/969.92
  6. Step 6: Final answer
    x = 400.87

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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.