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Finding the Fourth Proportional to 548,846.88, 757,299.94 and 307,082.53

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Solution

The fourth proportional to 548,846.88, 757,299.94 and 307,082.53 is: 423,713.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,846.88 : 757,299.94 = 307,082.53 : x
  2. Step 2: Convert to fraction form
    548,846.88/757,299.94 = 307,082.53/x
  3. Step 3: Cross multiply
    548,846.88x = 757,299.94 × 307,082.53
  4. Step 4: Simplify right side
    548,846.88x = 232,553,581,544.05
  5. Step 5: Solve for x
    x = 232,553,581,544.05/548,846.88
  6. Step 6: Final answer
    x = 423,713.04

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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.