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Finding the Fourth Proportional to 1,194.97, 1,648.27 and 697.14

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Solution

The fourth proportional to 1,194.97, 1,648.27 and 697.14 is: 961.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.97 : 1,648.27 = 697.14 : x
  2. Step 2: Convert to fraction form
    1,194.97/1,648.27 = 697.14/x
  3. Step 3: Cross multiply
    1,194.97x = 1,648.27 × 697.14
  4. Step 4: Simplify right side
    1,194.97x = 1,149,074.95
  5. Step 5: Solve for x
    x = 1,149,074.95/1,194.97
  6. Step 6: Final answer
    x = 961.59

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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.