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Finding the Fourth Proportional to 3,373.90, 5,060.39 and 908.87

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Solution

The fourth proportional to 3,373.90, 5,060.39 and 908.87 is: 1,363.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,373.90 : 5,060.39 = 908.87 : x
  2. Step 2: Convert to fraction form
    3,373.90/5,060.39 = 908.87/x
  3. Step 3: Cross multiply
    3,373.90x = 5,060.39 × 908.87
  4. Step 4: Simplify right side
    3,373.90x = 4,599,240.39
  5. Step 5: Solve for x
    x = 4,599,240.39/3,373.90
  6. Step 6: Final answer
    x = 1,363.18

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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.