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Finding the Fourth Proportional to 394,585.16, 591,812.94 and 169,885.10

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Solution

The fourth proportional to 394,585.16, 591,812.94 and 169,885.10 is: 254,799.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,585.16 : 591,812.94 = 169,885.10 : x
  2. Step 2: Convert to fraction form
    394,585.16/591,812.94 = 169,885.10/x
  3. Step 3: Cross multiply
    394,585.16x = 591,812.94 × 169,885.10
  4. Step 4: Simplify right side
    394,585.16x = 100,540,200,493.19
  5. Step 5: Solve for x
    x = 100,540,200,493.19/394,585.16
  6. Step 6: Final answer
    x = 254,799.75

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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.