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Finding the Fourth Proportional to 361,491.80, 541,719.30 and 265,976.60

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Solution

The fourth proportional to 361,491.80, 541,719.30 and 265,976.60 is: 398,583.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,491.80 : 541,719.30 = 265,976.60 : x
  2. Step 2: Convert to fraction form
    361,491.80/541,719.30 = 265,976.60/x
  3. Step 3: Cross multiply
    361,491.80x = 541,719.30 × 265,976.60
  4. Step 4: Simplify right side
    361,491.80x = 144,084,657,568.38
  5. Step 5: Solve for x
    x = 144,084,657,568.38/361,491.80
  6. Step 6: Final answer
    x = 398,583.47

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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.