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Finding the Fourth Proportional to 394,707.66, 591,996.66 and 170,008.02

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Solution

The fourth proportional to 394,707.66, 591,996.66 and 170,008.02 is: 254,984.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,707.66 : 591,996.66 = 170,008.02 : x
  2. Step 2: Convert to fraction form
    394,707.66/591,996.66 = 170,008.02/x
  3. Step 3: Cross multiply
    394,707.66x = 591,996.66 × 170,008.02
  4. Step 4: Simplify right side
    394,707.66x = 100,644,180,013.21
  5. Step 5: Solve for x
    x = 100,644,180,013.21/394,707.66
  6. Step 6: Final answer
    x = 254,984.11

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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.