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Finding the Fourth Proportional to 394,587.66, 591,816.69 and 169,887.60

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Solution

The fourth proportional to 394,587.66, 591,816.69 and 169,887.60 is: 254,803.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,587.66 : 591,816.69 = 169,887.60 : x
  2. Step 2: Convert to fraction form
    394,587.66/591,816.69 = 169,887.60/x
  3. Step 3: Cross multiply
    394,587.66x = 591,816.69 × 169,887.60
  4. Step 4: Simplify right side
    394,587.66x = 100,542,317,104.04
  5. Step 5: Solve for x
    x = 100,542,317,104.04/394,587.66
  6. Step 6: Final answer
    x = 254,803.50

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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.