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Finding the Fourth Proportional to 2,398.59, 3,596.67 and 938.16

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Solution

The fourth proportional to 2,398.59, 3,596.67 and 938.16 is: 1,406.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,398.59 : 3,596.67 = 938.16 : x
  2. Step 2: Convert to fraction form
    2,398.59/3,596.67 = 938.16/x
  3. Step 3: Cross multiply
    2,398.59x = 3,596.67 × 938.16
  4. Step 4: Simplify right side
    2,398.59x = 3,374,251.93
  5. Step 5: Solve for x
    x = 3,374,251.93/2,398.59
  6. Step 6: Final answer
    x = 1,406.76

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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.