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Finding the Fourth Proportional to 618,058.64, 927,231.74 and 191,571.84

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Solution

The fourth proportional to 618,058.64, 927,231.74 and 191,571.84 is: 287,402.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,058.64 : 927,231.74 = 191,571.84 : x
  2. Step 2: Convert to fraction form
    618,058.64/927,231.74 = 191,571.84/x
  3. Step 3: Cross multiply
    618,058.64x = 927,231.74 × 191,571.84
  4. Step 4: Simplify right side
    618,058.64x = 177,631,489,580.34
  5. Step 5: Solve for x
    x = 177,631,489,580.34/618,058.64
  6. Step 6: Final answer
    x = 287,402.33

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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.