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Finding the Fourth Proportional to 3,114.52, 4,671.76 and 922.96

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Solution

The fourth proportional to 3,114.52, 4,671.76 and 922.96 is: 1,384.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.52 : 4,671.76 = 922.96 : x
  2. Step 2: Convert to fraction form
    3,114.52/4,671.76 = 922.96/x
  3. Step 3: Cross multiply
    3,114.52x = 4,671.76 × 922.96
  4. Step 4: Simplify right side
    3,114.52x = 4,311,847.61
  5. Step 5: Solve for x
    x = 4,311,847.61/3,114.52
  6. Step 6: Final answer
    x = 1,384.43

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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.