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Finding the Fourth Proportional to 618,229.91, 927,477.71 and 191,756.81

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Solution

The fourth proportional to 618,229.91, 927,477.71 and 191,756.81 is: 287,676.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,229.91 : 927,477.71 = 191,756.81 : x
  2. Step 2: Convert to fraction form
    618,229.91/927,477.71 = 191,756.81/x
  3. Step 3: Cross multiply
    618,229.91x = 927,477.71 × 191,756.81
  4. Step 4: Simplify right side
    618,229.91x = 177,850,161,419.53
  5. Step 5: Solve for x
    x = 177,850,161,419.53/618,229.91
  6. Step 6: Final answer
    x = 287,676.41

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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.