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Finding the Fourth Proportional to 1,221.76, 1,832.28 and 596.67

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Solution

The fourth proportional to 1,221.76, 1,832.28 and 596.67 is: 894.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221.76 : 1,832.28 = 596.67 : x
  2. Step 2: Convert to fraction form
    1,221.76/1,832.28 = 596.67/x
  3. Step 3: Cross multiply
    1,221.76x = 1,832.28 × 596.67
  4. Step 4: Simplify right side
    1,221.76x = 1,093,262.67
  5. Step 5: Solve for x
    x = 1,093,262.67/1,221.76
  6. Step 6: Final answer
    x = 894.83

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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.