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Finding the Fourth Proportional to 618,062.89, 927,238.11 and 191,576.09

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Solution

The fourth proportional to 618,062.89, 927,238.11 and 191,576.09 is: 287,408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,062.89 : 927,238.11 = 191,576.09 : x
  2. Step 2: Convert to fraction form
    618,062.89/927,238.11 = 191,576.09/x
  3. Step 3: Cross multiply
    618,062.89x = 927,238.11 × 191,576.09
  4. Step 4: Simplify right side
    618,062.89x = 177,636,651,612.79
  5. Step 5: Solve for x
    x = 177,636,651,612.79/618,062.89
  6. Step 6: Final answer
    x = 287,408.70

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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.