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Finding the Fourth Proportional to 296,540.80, 444,811.20 and 263,881.60

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Solution

The fourth proportional to 296,540.80, 444,811.20 and 263,881.60 is: 395,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,540.80 : 444,811.20 = 263,881.60 : x
  2. Step 2: Convert to fraction form
    296,540.80/444,811.20 = 263,881.60/x
  3. Step 3: Cross multiply
    296,540.80x = 444,811.20 × 263,881.60
  4. Step 4: Simplify right side
    296,540.80x = 117,377,491,153.92
  5. Step 5: Solve for x
    x = 117,377,491,153.92/296,540.80
  6. Step 6: Final answer
    x = 395,822.40

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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.