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Finding the Fourth Proportional to 436,901.81, 655,133.52 and 254,591.68

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Solution

The fourth proportional to 436,901.81, 655,133.52 and 254,591.68 is: 381,759.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,901.81 : 655,133.52 = 254,591.68 : x
  2. Step 2: Convert to fraction form
    436,901.81/655,133.52 = 254,591.68/x
  3. Step 3: Cross multiply
    436,901.81x = 655,133.52 × 254,591.68
  4. Step 4: Simplify right side
    436,901.81x = 166,791,542,208.16
  5. Step 5: Solve for x
    x = 166,791,542,208.16/436,901.81
  6. Step 6: Final answer
    x = 381,759.79

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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.