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Finding the Fourth Proportional to 543,896.84, 815,614.58 and 259,258.11

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Solution

The fourth proportional to 543,896.84, 815,614.58 and 259,258.11 is: 388,777.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,896.84 : 815,614.58 = 259,258.11 : x
  2. Step 2: Convert to fraction form
    543,896.84/815,614.58 = 259,258.11/x
  3. Step 3: Cross multiply
    543,896.84x = 815,614.58 × 259,258.11
  4. Step 4: Simplify right side
    543,896.84x = 211,454,693,202.95
  5. Step 5: Solve for x
    x = 211,454,693,202.95/543,896.84
  6. Step 6: Final answer
    x = 388,777.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.