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Finding the Fourth Proportional to 531.52, 732 and 482.56

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Solution

The fourth proportional to 531.52, 732 and 482.56 is: 664.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.52 : 732 = 482.56 : x
  2. Step 2: Convert to fraction form
    531.52/732 = 482.56/x
  3. Step 3: Cross multiply
    531.52x = 732 × 482.56
  4. Step 4: Simplify right side
    531.52x = 353,233.92
  5. Step 5: Solve for x
    x = 353,233.92/531.52
  6. Step 6: Final answer
    x = 664.57

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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.