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Finding the Fourth Proportional to 1,194.21, 1,648.17 and 696.96

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Solution

The fourth proportional to 1,194.21, 1,648.17 and 696.96 is: 961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.21 : 1,648.17 = 696.96 : x
  2. Step 2: Convert to fraction form
    1,194.21/1,648.17 = 696.96/x
  3. Step 3: Cross multiply
    1,194.21x = 1,648.17 × 696.96
  4. Step 4: Simplify right side
    1,194.21x = 1,148,708.56
  5. Step 5: Solve for x
    x = 1,148,708.56/1,194.21
  6. Step 6: Final answer
    x = 961.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.