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Finding the Fourth Proportional to 484,037.68, 667,920.84 and 269,143.06

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Solution

The fourth proportional to 484,037.68, 667,920.84 and 269,143.06 is: 371,388.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,037.68 : 667,920.84 = 269,143.06 : x
  2. Step 2: Convert to fraction form
    484,037.68/667,920.84 = 269,143.06/x
  3. Step 3: Cross multiply
    484,037.68x = 667,920.84 × 269,143.06
  4. Step 4: Simplify right side
    484,037.68x = 179,766,258,715.37
  5. Step 5: Solve for x
    x = 179,766,258,715.37/484,037.68
  6. Step 6: Final answer
    x = 371,388.98

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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.