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Finding the Fourth Proportional to 356,787.20, 534,403.20 and 294,579.20

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Solution

The fourth proportional to 356,787.20, 534,403.20 and 294,579.20 is: 441,226.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,787.20 : 534,403.20 = 294,579.20 : x
  2. Step 2: Convert to fraction form
    356,787.20/534,403.20 = 294,579.20/x
  3. Step 3: Cross multiply
    356,787.20x = 534,403.20 × 294,579.20
  4. Step 4: Simplify right side
    356,787.20x = 157,424,067,133.44
  5. Step 5: Solve for x
    x = 157,424,067,133.44/356,787.20
  6. Step 6: Final answer
    x = 441,226.78

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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.