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Finding the Fourth Proportional to 967.36, 1,451.20 and 454.08

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Solution

The fourth proportional to 967.36, 1,451.20 and 454.08 is: 681.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.36 : 1,451.20 = 454.08 : x
  2. Step 2: Convert to fraction form
    967.36/1,451.20 = 454.08/x
  3. Step 3: Cross multiply
    967.36x = 1,451.20 × 454.08
  4. Step 4: Simplify right side
    967.36x = 658,960.90
  5. Step 5: Solve for x
    x = 658,960.90/967.36
  6. Step 6: Final answer
    x = 681.20

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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.