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Finding the Fourth Proportional to 1,968.28, 2,954.25 and 995.07

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Solution

The fourth proportional to 1,968.28, 2,954.25 and 995.07 is: 1,493.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.28 : 2,954.25 = 995.07 : x
  2. Step 2: Convert to fraction form
    1,968.28/2,954.25 = 995.07/x
  3. Step 3: Cross multiply
    1,968.28x = 2,954.25 × 995.07
  4. Step 4: Simplify right side
    1,968.28x = 2,939,685.55
  5. Step 5: Solve for x
    x = 2,939,685.55/1,968.28
  6. Step 6: Final answer
    x = 1,493.53

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Half scale
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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.