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Finding the Fourth Proportional to 618,196.92, 927,428.51 and 191,724.09

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Solution

The fourth proportional to 618,196.92, 927,428.51 and 191,724.09 is: 287,627.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,196.92 : 927,428.51 = 191,724.09 : x
  2. Step 2: Convert to fraction form
    618,196.92/927,428.51 = 191,724.09/x
  3. Step 3: Cross multiply
    618,196.92x = 927,428.51 × 191,724.09
  4. Step 4: Simplify right side
    618,196.92x = 177,810,387,119.81
  5. Step 5: Solve for x
    x = 177,810,387,119.81/618,196.92
  6. Step 6: Final answer
    x = 287,627.42

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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.