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Finding the Fourth Proportional to 532.83, 735.24 and 311.73

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Solution

The fourth proportional to 532.83, 735.24 and 311.73 is: 430.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.83 : 735.24 = 311.73 : x
  2. Step 2: Convert to fraction form
    532.83/735.24 = 311.73/x
  3. Step 3: Cross multiply
    532.83x = 735.24 × 311.73
  4. Step 4: Simplify right side
    532.83x = 229,196.37
  5. Step 5: Solve for x
    x = 229,196.37/532.83
  6. Step 6: Final answer
    x = 430.15

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.