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Finding the Fourth Proportional to 1,983.16, 2,974.78 and 596.54

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Solution

The fourth proportional to 1,983.16, 2,974.78 and 596.54 is: 894.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.16 : 2,974.78 = 596.54 : x
  2. Step 2: Convert to fraction form
    1,983.16/2,974.78 = 596.54/x
  3. Step 3: Cross multiply
    1,983.16x = 2,974.78 × 596.54
  4. Step 4: Simplify right side
    1,983.16x = 1,774,571.72
  5. Step 5: Solve for x
    x = 1,774,571.72/1,983.16
  6. Step 6: Final answer
    x = 894.82

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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.