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Finding the Fourth Proportional to 674.71, 1,012.04 and 241.86

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Solution

The fourth proportional to 674.71, 1,012.04 and 241.86 is: 362.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    674.71 : 1,012.04 = 241.86 : x
  2. Step 2: Convert to fraction form
    674.71/1,012.04 = 241.86/x
  3. Step 3: Cross multiply
    674.71x = 1,012.04 × 241.86
  4. Step 4: Simplify right side
    674.71x = 244,771.99
  5. Step 5: Solve for x
    x = 244,771.99/674.71
  6. Step 6: Final answer
    x = 362.78

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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.