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Finding the Fourth Proportional to 336,649.86, 464,576.61 and 215,791.04

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Solution

The fourth proportional to 336,649.86, 464,576.61 and 215,791.04 is: 297,791.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,649.86 : 464,576.61 = 215,791.04 : x
  2. Step 2: Convert to fraction form
    336,649.86/464,576.61 = 215,791.04/x
  3. Step 3: Cross multiply
    336,649.86x = 464,576.61 × 215,791.04
  4. Step 4: Simplify right side
    336,649.86x = 100,251,469,831.57
  5. Step 5: Solve for x
    x = 100,251,469,831.57/336,649.86
  6. Step 6: Final answer
    x = 297,791.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.