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Finding the Fourth Proportional to 3,147.97, 4,722.20 and 958.24

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Solution

The fourth proportional to 3,147.97, 4,722.20 and 958.24 is: 1,437.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.97 : 4,722.20 = 958.24 : x
  2. Step 2: Convert to fraction form
    3,147.97/4,722.20 = 958.24/x
  3. Step 3: Cross multiply
    3,147.97x = 4,722.20 × 958.24
  4. Step 4: Simplify right side
    3,147.97x = 4,525,000.93
  5. Step 5: Solve for x
    x = 4,525,000.93/3,147.97
  6. Step 6: Final answer
    x = 1,437.43

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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.