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Finding the Fourth Proportional to 733.52, 1,012.24 and 423.04

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Solution

The fourth proportional to 733.52, 1,012.24 and 423.04 is: 583.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    733.52 : 1,012.24 = 423.04 : x
  2. Step 2: Convert to fraction form
    733.52/1,012.24 = 423.04/x
  3. Step 3: Cross multiply
    733.52x = 1,012.24 × 423.04
  4. Step 4: Simplify right side
    733.52x = 428,218.01
  5. Step 5: Solve for x
    x = 428,218.01/733.52
  6. Step 6: Final answer
    x = 583.79

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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.