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Finding the Fourth Proportional to 545,843.94, 818,924.28 and 225,936.90

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Solution

The fourth proportional to 545,843.94, 818,924.28 and 225,936.90 is: 338,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,843.94 : 818,924.28 = 225,936.90 : x
  2. Step 2: Convert to fraction form
    545,843.94/818,924.28 = 225,936.90/x
  3. Step 3: Cross multiply
    545,843.94x = 818,924.28 × 225,936.90
  4. Step 4: Simplify right side
    545,843.94x = 185,025,213,157.93
  5. Step 5: Solve for x
    x = 185,025,213,157.93/545,843.94
  6. Step 6: Final answer
    x = 338,970.90

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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.