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Finding the Fourth Proportional to 394,602.48, 591,667.20 and 191,799.18

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Solution

The fourth proportional to 394,602.48, 591,667.20 and 191,799.18 is: 287,583.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,602.48 : 591,667.20 = 191,799.18 : x
  2. Step 2: Convert to fraction form
    394,602.48/591,667.20 = 191,799.18/x
  3. Step 3: Cross multiply
    394,602.48x = 591,667.20 × 191,799.18
  4. Step 4: Simplify right side
    394,602.48x = 113,481,283,792.90
  5. Step 5: Solve for x
    x = 113,481,283,792.90/394,602.48
  6. Step 6: Final answer
    x = 287,583.81

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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.