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Finding the Fourth Proportional to 3,595.38, 5,393.10 and 998.28

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Solution

The fourth proportional to 3,595.38, 5,393.10 and 998.28 is: 1,497.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,595.38 : 5,393.10 = 998.28 : x
  2. Step 2: Convert to fraction form
    3,595.38/5,393.10 = 998.28/x
  3. Step 3: Cross multiply
    3,595.38x = 5,393.10 × 998.28
  4. Step 4: Simplify right side
    3,595.38x = 5,383,823.87
  5. Step 5: Solve for x
    x = 5,383,823.87/3,595.38
  6. Step 6: Final answer
    x = 1,497.43

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.