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Finding the Fourth Proportional to 618,067.21, 927,490.83 and 263,080.66

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Solution

The fourth proportional to 618,067.21, 927,490.83 and 263,080.66 is: 394,787.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,067.21 : 927,490.83 = 263,080.66 : x
  2. Step 2: Convert to fraction form
    618,067.21/927,490.83 = 263,080.66/x
  3. Step 3: Cross multiply
    618,067.21x = 927,490.83 × 263,080.66
  4. Step 4: Simplify right side
    618,067.21x = 244,004,899,700.35
  5. Step 5: Solve for x
    x = 244,004,899,700.35/618,067.21
  6. Step 6: Final answer
    x = 394,787.00

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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.