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Finding the Fourth Proportional to 962.27, 1,443.50 and 474.85

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Solution

The fourth proportional to 962.27, 1,443.50 and 474.85 is: 712.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.27 : 1,443.50 = 474.85 : x
  2. Step 2: Convert to fraction form
    962.27/1,443.50 = 474.85/x
  3. Step 3: Cross multiply
    962.27x = 1,443.50 × 474.85
  4. Step 4: Simplify right side
    962.27x = 685,447.16
  5. Step 5: Solve for x
    x = 685,447.16/962.27
  6. Step 6: Final answer
    x = 712.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.