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Finding the Fourth Proportional to 483,873.54, 667,672.22 and 277,109.78

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Solution

The fourth proportional to 483,873.54, 667,672.22 and 277,109.78 is: 382,369.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,873.54 : 667,672.22 = 277,109.78 : x
  2. Step 2: Convert to fraction form
    483,873.54/667,672.22 = 277,109.78/x
  3. Step 3: Cross multiply
    483,873.54x = 667,672.22 × 277,109.78
  4. Step 4: Simplify right side
    483,873.54x = 185,018,497,272.40
  5. Step 5: Solve for x
    x = 185,018,497,272.40/483,873.54
  6. Step 6: Final answer
    x = 382,369.53

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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.