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Finding the Fourth Proportional to 617,529.25, 926,104.79 and 218,076.44

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Solution

The fourth proportional to 617,529.25, 926,104.79 and 218,076.44 is: 327,047.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,529.25 : 926,104.79 = 218,076.44 : x
  2. Step 2: Convert to fraction form
    617,529.25/926,104.79 = 218,076.44/x
  3. Step 3: Cross multiply
    617,529.25x = 926,104.79 × 218,076.44
  4. Step 4: Simplify right side
    617,529.25x = 201,961,631,584.82
  5. Step 5: Solve for x
    x = 201,961,631,584.82/617,529.25
  6. Step 6: Final answer
    x = 327,047.88

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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.