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Finding the Fourth Proportional to 361,889.28, 543,682.22 and 341,439.75

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Solution

The fourth proportional to 361,889.28, 543,682.22 and 341,439.75 is: 512,959.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,889.28 : 543,682.22 = 341,439.75 : x
  2. Step 2: Convert to fraction form
    361,889.28/543,682.22 = 341,439.75/x
  3. Step 3: Cross multiply
    361,889.28x = 543,682.22 × 341,439.75
  4. Step 4: Simplify right side
    361,889.28x = 185,634,719,569.05
  5. Step 5: Solve for x
    x = 185,634,719,569.05/361,889.28
  6. Step 6: Final answer
    x = 512,959.98

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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.