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Finding the Fourth Proportional to 483,468.48, 667,187.28 and 268,608.78

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Solution

The fourth proportional to 483,468.48, 667,187.28 and 268,608.78 is: 370,680.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,468.48 : 667,187.28 = 268,608.78 : x
  2. Step 2: Convert to fraction form
    483,468.48/667,187.28 = 268,608.78/x
  3. Step 3: Cross multiply
    483,468.48x = 667,187.28 × 268,608.78
  4. Step 4: Simplify right side
    483,468.48x = 179,212,361,312.32
  5. Step 5: Solve for x
    x = 179,212,361,312.32/483,468.48
  6. Step 6: Final answer
    x = 370,680.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.