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Finding the Fourth Proportional to 617,818.44, 926,803.99 and 218,376.84

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Solution

The fourth proportional to 617,818.44, 926,803.99 and 218,376.84 is: 327,592.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,818.44 : 926,803.99 = 218,376.84 : x
  2. Step 2: Convert to fraction form
    617,818.44/926,803.99 = 218,376.84/x
  3. Step 3: Cross multiply
    617,818.44x = 926,803.99 × 218,376.84
  4. Step 4: Simplify right side
    617,818.44x = 202,392,526,635.59
  5. Step 5: Solve for x
    x = 202,392,526,635.59/617,818.44
  6. Step 6: Final answer
    x = 327,592.24

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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.