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Finding the Fourth Proportional to 1,168.06, 1,612.44 and 696.12

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Solution

The fourth proportional to 1,168.06, 1,612.44 and 696.12 is: 960.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.06 : 1,612.44 = 696.12 : x
  2. Step 2: Convert to fraction form
    1,168.06/1,612.44 = 696.12/x
  3. Step 3: Cross multiply
    1,168.06x = 1,612.44 × 696.12
  4. Step 4: Simplify right side
    1,168.06x = 1,122,451.73
  5. Step 5: Solve for x
    x = 1,122,451.73/1,168.06
  6. Step 6: Final answer
    x = 960.95

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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.