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Finding the Fourth Proportional to 483,830.91, 667,709.44 and 268,974.56

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Solution

The fourth proportional to 483,830.91, 667,709.44 and 268,974.56 is: 371,197.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,830.91 : 667,709.44 = 268,974.56 : x
  2. Step 2: Convert to fraction form
    483,830.91/667,709.44 = 268,974.56/x
  3. Step 3: Cross multiply
    483,830.91x = 667,709.44 × 268,974.56
  4. Step 4: Simplify right side
    483,830.91x = 179,596,855,341.67
  5. Step 5: Solve for x
    x = 179,596,855,341.67/483,830.91
  6. Step 6: Final answer
    x = 371,197.56

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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.