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Finding the Fourth Proportional to 618,224.78, 927,470.01 and 191,751.68

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Solution

The fourth proportional to 618,224.78, 927,470.01 and 191,751.68 is: 287,668.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,224.78 : 927,470.01 = 191,751.68 : x
  2. Step 2: Convert to fraction form
    618,224.78/927,470.01 = 191,751.68/x
  3. Step 3: Cross multiply
    618,224.78x = 927,470.01 × 191,751.68
  4. Step 4: Simplify right side
    618,224.78x = 177,843,932,567.12
  5. Step 5: Solve for x
    x = 177,843,932,567.12/618,224.78
  6. Step 6: Final answer
    x = 287,668.72

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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.