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Finding the Fourth Proportional to 1,194.96, 1,648.38 and 697.44

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Solution

The fourth proportional to 1,194.96, 1,648.38 and 697.44 is: 962.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.96 : 1,648.38 = 697.44 : x
  2. Step 2: Convert to fraction form
    1,194.96/1,648.38 = 697.44/x
  3. Step 3: Cross multiply
    1,194.96x = 1,648.38 × 697.44
  4. Step 4: Simplify right side
    1,194.96x = 1,149,646.15
  5. Step 5: Solve for x
    x = 1,149,646.15/1,194.96
  6. Step 6: Final answer
    x = 962.08

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Half scale
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Double scale
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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.