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Finding the Fourth Proportional to 394,584.59, 544,169.25 and 258,569.15

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Solution

The fourth proportional to 394,584.59, 544,169.25 and 258,569.15 is: 356,591.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,584.59 : 544,169.25 = 258,569.15 : x
  2. Step 2: Convert to fraction form
    394,584.59/544,169.25 = 258,569.15/x
  3. Step 3: Cross multiply
    394,584.59x = 544,169.25 × 258,569.15
  4. Step 4: Simplify right side
    394,584.59x = 140,705,377,707.79
  5. Step 5: Solve for x
    x = 140,705,377,707.79/394,584.59
  6. Step 6: Final answer
    x = 356,591.16

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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.