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Finding the Fourth Proportional to 967.27, 1,334.80 and 525.16

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Solution

The fourth proportional to 967.27, 1,334.80 and 525.16 is: 724.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.27 : 1,334.80 = 525.16 : x
  2. Step 2: Convert to fraction form
    967.27/1,334.80 = 525.16/x
  3. Step 3: Cross multiply
    967.27x = 1,334.80 × 525.16
  4. Step 4: Simplify right side
    967.27x = 700,990.40
  5. Step 5: Solve for x
    x = 700,990.40/967.27
  6. Step 6: Final answer
    x = 724.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.