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Finding the Fourth Proportional to 968.52, 1,336.24 and 548.83

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Solution

The fourth proportional to 968.52, 1,336.24 and 548.83 is: 757.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.52 : 1,336.24 = 548.83 : x
  2. Step 2: Convert to fraction form
    968.52/1,336.24 = 548.83/x
  3. Step 3: Cross multiply
    968.52x = 1,336.24 × 548.83
  4. Step 4: Simplify right side
    968.52x = 733,368.60
  5. Step 5: Solve for x
    x = 733,368.60/968.52
  6. Step 6: Final answer
    x = 757.21

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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.