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Finding the Fourth Proportional to 436,901.56, 655,133.14 and 254,591.43

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Solution

The fourth proportional to 436,901.56, 655,133.14 and 254,591.43 is: 381,759.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,901.56 : 655,133.14 = 254,591.43 : x
  2. Step 2: Convert to fraction form
    436,901.56/655,133.14 = 254,591.43/x
  3. Step 3: Cross multiply
    436,901.56x = 655,133.14 × 254,591.43
  4. Step 4: Simplify right side
    436,901.56x = 166,791,282,952.99
  5. Step 5: Solve for x
    x = 166,791,282,952.99/436,901.56
  6. Step 6: Final answer
    x = 381,759.41

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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.