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Finding the Fourth Proportional to 617,817.94, 926,803.24 and 218,376.34

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Solution

The fourth proportional to 617,817.94, 926,803.24 and 218,376.34 is: 327,591.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,817.94 : 926,803.24 = 218,376.34 : x
  2. Step 2: Convert to fraction form
    617,817.94/926,803.24 = 218,376.34/x
  3. Step 3: Cross multiply
    617,817.94x = 926,803.24 × 218,376.34
  4. Step 4: Simplify right side
    617,817.94x = 202,391,899,451.34
  5. Step 5: Solve for x
    x = 202,391,899,451.34/617,817.94
  6. Step 6: Final answer
    x = 327,591.49

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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.