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Finding the Fourth Proportional to 2,382.40, 3,574.92 and 995.44

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Solution

The fourth proportional to 2,382.40, 3,574.92 and 995.44 is: 1,493.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.40 : 3,574.92 = 995.44 : x
  2. Step 2: Convert to fraction form
    2,382.40/3,574.92 = 995.44/x
  3. Step 3: Cross multiply
    2,382.40x = 3,574.92 × 995.44
  4. Step 4: Simplify right side
    2,382.40x = 3,558,618.36
  5. Step 5: Solve for x
    x = 3,558,618.36/2,382.40
  6. Step 6: Final answer
    x = 1,493.71

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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.