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Finding the Fourth Proportional to 967.18, 1,334.62 and 547.56

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Solution

The fourth proportional to 967.18, 1,334.62 and 547.56 is: 755.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.18 : 1,334.62 = 547.56 : x
  2. Step 2: Convert to fraction form
    967.18/1,334.62 = 547.56/x
  3. Step 3: Cross multiply
    967.18x = 1,334.62 × 547.56
  4. Step 4: Simplify right side
    967.18x = 730,784.53
  5. Step 5: Solve for x
    x = 730,784.53/967.18
  6. Step 6: Final answer
    x = 755.58

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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.