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Finding the Fourth Proportional to 394,226.40, 591,339.60 and 236,632.80

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Solution

The fourth proportional to 394,226.40, 591,339.60 and 236,632.80 is: 354,949.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,226.40 : 591,339.60 = 236,632.80 : x
  2. Step 2: Convert to fraction form
    394,226.40/591,339.60 = 236,632.80/x
  3. Step 3: Cross multiply
    394,226.40x = 591,339.60 × 236,632.80
  4. Step 4: Simplify right side
    394,226.40x = 139,930,345,298.88
  5. Step 5: Solve for x
    x = 139,930,345,298.88/394,226.40
  6. Step 6: Final answer
    x = 354,949.20

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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.