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Finding the Fourth Proportional to 958.44, 1,435.82 and 546.92

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Solution

The fourth proportional to 958.44, 1,435.82 and 546.92 is: 819.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.44 : 1,435.82 = 546.92 : x
  2. Step 2: Convert to fraction form
    958.44/1,435.82 = 546.92/x
  3. Step 3: Cross multiply
    958.44x = 1,435.82 × 546.92
  4. Step 4: Simplify right side
    958.44x = 785,278.67
  5. Step 5: Solve for x
    x = 785,278.67/958.44
  6. Step 6: Final answer
    x = 819.33

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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.