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Finding the Fourth Proportional to 394,787.92, 544,167.46 and 308,594.60

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Solution

The fourth proportional to 394,787.92, 544,167.46 and 308,594.60 is: 425,360.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,787.92 : 544,167.46 = 308,594.60 : x
  2. Step 2: Convert to fraction form
    394,787.92/544,167.46 = 308,594.60/x
  3. Step 3: Cross multiply
    394,787.92x = 544,167.46 × 308,594.60
  4. Step 4: Simplify right side
    394,787.92x = 167,927,139,651.72
  5. Step 5: Solve for x
    x = 167,927,139,651.72/394,787.92
  6. Step 6: Final answer
    x = 425,360.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.