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Finding the Fourth Proportional to 361,228.80, 541,324.80 and 265,713.60

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Solution

The fourth proportional to 361,228.80, 541,324.80 and 265,713.60 is: 398,189.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,228.80 : 541,324.80 = 265,713.60 : x
  2. Step 2: Convert to fraction form
    361,228.80/541,324.80 = 265,713.60/x
  3. Step 3: Cross multiply
    361,228.80x = 541,324.80 × 265,713.60
  4. Step 4: Simplify right side
    361,228.80x = 143,837,361,377.28
  5. Step 5: Solve for x
    x = 143,837,361,377.28/361,228.80
  6. Step 6: Final answer
    x = 398,189.07

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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.