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Finding the Fourth Proportional to 2,934.40, 4,380.40 and 2,496.88

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Solution

The fourth proportional to 2,934.40, 4,380.40 and 2,496.88 is: 3,727.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,934.40 : 4,380.40 = 2,496.88 : x
  2. Step 2: Convert to fraction form
    2,934.40/4,380.40 = 2,496.88/x
  3. Step 3: Cross multiply
    2,934.40x = 4,380.40 × 2,496.88
  4. Step 4: Simplify right side
    2,934.40x = 10,937,333.15
  5. Step 5: Solve for x
    x = 10,937,333.15/2,934.40
  6. Step 6: Final answer
    x = 3,727.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.