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Finding the Fourth Proportional to 3,476.16, 5,213.97 and 879.03

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Solution

The fourth proportional to 3,476.16, 5,213.97 and 879.03 is: 1,318.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,476.16 : 5,213.97 = 879.03 : x
  2. Step 2: Convert to fraction form
    3,476.16/5,213.97 = 879.03/x
  3. Step 3: Cross multiply
    3,476.16x = 5,213.97 × 879.03
  4. Step 4: Simplify right side
    3,476.16x = 4,583,236.05
  5. Step 5: Solve for x
    x = 4,583,236.05/3,476.16
  6. Step 6: Final answer
    x = 1,318.48

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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.