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Finding the Fourth Proportional to 1,195.92, 1,635.60 and 1,191.60

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Solution

The fourth proportional to 1,195.92, 1,635.60 and 1,191.60 is: 1,629.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195.92 : 1,635.60 = 1,191.60 : x
  2. Step 2: Convert to fraction form
    1,195.92/1,635.60 = 1,191.60/x
  3. Step 3: Cross multiply
    1,195.92x = 1,635.60 × 1,191.60
  4. Step 4: Simplify right side
    1,195.92x = 1,948,980.96
  5. Step 5: Solve for x
    x = 1,948,980.96/1,195.92
  6. Step 6: Final answer
    x = 1,629.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.