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Finding the Fourth Proportional to 3,593.84, 5,390.77 and 996.78

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Solution

The fourth proportional to 3,593.84, 5,390.77 and 996.78 is: 1,495.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,593.84 : 5,390.77 = 996.78 : x
  2. Step 2: Convert to fraction form
    3,593.84/5,390.77 = 996.78/x
  3. Step 3: Cross multiply
    3,593.84x = 5,390.77 × 996.78
  4. Step 4: Simplify right side
    3,593.84x = 5,373,414.72
  5. Step 5: Solve for x
    x = 5,373,414.72/3,593.84
  6. Step 6: Final answer
    x = 1,495.17

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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.