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Finding the Fourth Proportional to 2,604.42, 3,906.68 and 849.42

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Solution

The fourth proportional to 2,604.42, 3,906.68 and 849.42 is: 1,274.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,604.42 : 3,906.68 = 849.42 : x
  2. Step 2: Convert to fraction form
    2,604.42/3,906.68 = 849.42/x
  3. Step 3: Cross multiply
    2,604.42x = 3,906.68 × 849.42
  4. Step 4: Simplify right side
    2,604.42x = 3,318,409.07
  5. Step 5: Solve for x
    x = 3,318,409.07/2,604.42
  6. Step 6: Final answer
    x = 1,274.14

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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.