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Finding the Fourth Proportional to 2,257.38, 3,385.86 and 796.38

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Solution

The fourth proportional to 2,257.38, 3,385.86 and 796.38 is: 1,194.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.38 : 3,385.86 = 796.38 : x
  2. Step 2: Convert to fraction form
    2,257.38/3,385.86 = 796.38/x
  3. Step 3: Cross multiply
    2,257.38x = 3,385.86 × 796.38
  4. Step 4: Simplify right side
    2,257.38x = 2,696,431.19
  5. Step 5: Solve for x
    x = 2,696,431.19/2,257.38
  6. Step 6: Final answer
    x = 1,194.50

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1.5x scale

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.