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Finding the Fourth Proportional to 397,428.84, 548,169.78 and 244,265.94

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Solution

The fourth proportional to 397,428.84, 548,169.78 and 244,265.94 is: 336,913.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,428.84 : 548,169.78 = 244,265.94 : x
  2. Step 2: Convert to fraction form
    397,428.84/548,169.78 = 244,265.94/x
  3. Step 3: Cross multiply
    397,428.84x = 548,169.78 × 244,265.94
  4. Step 4: Simplify right side
    397,428.84x = 133,899,206,591.29
  5. Step 5: Solve for x
    x = 133,899,206,591.29/397,428.84
  6. Step 6: Final answer
    x = 336,913.66

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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.