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Finding the Fourth Proportional to 544,741.23, 817,115.49 and 189,761.97

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Solution

The fourth proportional to 544,741.23, 817,115.49 and 189,761.97 is: 284,644.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,741.23 : 817,115.49 = 189,761.97 : x
  2. Step 2: Convert to fraction form
    544,741.23/817,115.49 = 189,761.97/x
  3. Step 3: Cross multiply
    544,741.23x = 817,115.49 × 189,761.97
  4. Step 4: Simplify right side
    544,741.23x = 155,057,445,099.92
  5. Step 5: Solve for x
    x = 155,057,445,099.92/544,741.23
  6. Step 6: Final answer
    x = 284,644.22

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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.