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Finding the Fourth Proportional to 327,424.80, 491,137.20 and 248,692.80

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Solution

The fourth proportional to 327,424.80, 491,137.20 and 248,692.80 is: 373,039.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,424.80 : 491,137.20 = 248,692.80 : x
  2. Step 2: Convert to fraction form
    327,424.80/491,137.20 = 248,692.80/x
  3. Step 3: Cross multiply
    327,424.80x = 491,137.20 × 248,692.80
  4. Step 4: Simplify right side
    327,424.80x = 122,142,285,452.16
  5. Step 5: Solve for x
    x = 122,142,285,452.16/327,424.80
  6. Step 6: Final answer
    x = 373,039.20

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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.