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Finding the Fourth Proportional to 441,187.20, 660,468.60 and 263,602.80

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Solution

The fourth proportional to 441,187.20, 660,468.60 and 263,602.80 is: 394,620.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,187.20 : 660,468.60 = 263,602.80 : x
  2. Step 2: Convert to fraction form
    441,187.20/660,468.60 = 263,602.80/x
  3. Step 3: Cross multiply
    441,187.20x = 660,468.60 × 263,602.80
  4. Step 4: Simplify right side
    441,187.20x = 174,101,372,272.08
  5. Step 5: Solve for x
    x = 174,101,372,272.08/441,187.20
  6. Step 6: Final answer
    x = 394,620.18

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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.