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Finding the Fourth Proportional to 928.06, 1,281.27 and 596.92

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Solution

The fourth proportional to 928.06, 1,281.27 and 596.92 is: 824.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    928.06 : 1,281.27 = 596.92 : x
  2. Step 2: Convert to fraction form
    928.06/1,281.27 = 596.92/x
  3. Step 3: Cross multiply
    928.06x = 1,281.27 × 596.92
  4. Step 4: Simplify right side
    928.06x = 764,813.77
  5. Step 5: Solve for x
    x = 764,813.77/928.06
  6. Step 6: Final answer
    x = 824.10

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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.