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Finding the Fourth Proportional to 504,361.08, 756,344.79 and 220,138.56

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Solution

The fourth proportional to 504,361.08, 756,344.79 and 220,138.56 is: 330,121.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,361.08 : 756,344.79 = 220,138.56 : x
  2. Step 2: Convert to fraction form
    504,361.08/756,344.79 = 220,138.56/x
  3. Step 3: Cross multiply
    504,361.08x = 756,344.79 × 220,138.56
  4. Step 4: Simplify right side
    504,361.08x = 166,500,652,934.10
  5. Step 5: Solve for x
    x = 166,500,652,934.10/504,361.08
  6. Step 6: Final answer
    x = 330,121.93

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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.