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Finding the Fourth Proportional to 617,529.75, 926,105.54 and 218,076.94

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Solution

The fourth proportional to 617,529.75, 926,105.54 and 218,076.94 is: 327,048.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,529.75 : 926,105.54 = 218,076.94 : x
  2. Step 2: Convert to fraction form
    617,529.75/926,105.54 = 218,076.94/x
  3. Step 3: Cross multiply
    617,529.75x = 926,105.54 × 218,076.94
  4. Step 4: Simplify right side
    617,529.75x = 201,962,257,649.72
  5. Step 5: Solve for x
    x = 201,962,257,649.72/617,529.75
  6. Step 6: Final answer
    x = 327,048.63

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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.