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Finding the Fourth Proportional to 967.48, 1,335.08 and 547.92

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Solution

The fourth proportional to 967.48, 1,335.08 and 547.92 is: 756.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.48 : 1,335.08 = 547.92 : x
  2. Step 2: Convert to fraction form
    967.48/1,335.08 = 547.92/x
  3. Step 3: Cross multiply
    967.48x = 1,335.08 × 547.92
  4. Step 4: Simplify right side
    967.48x = 731,517.03
  5. Step 5: Solve for x
    x = 731,517.03/967.48
  6. Step 6: Final answer
    x = 756.11

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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.