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Finding the Fourth Proportional to 454,991.67, 682,487.53 and 155,474.73

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Solution

The fourth proportional to 454,991.67, 682,487.53 and 155,474.73 is: 233,212.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,991.67 : 682,487.53 = 155,474.73 : x
  2. Step 2: Convert to fraction form
    454,991.67/682,487.53 = 155,474.73/x
  3. Step 3: Cross multiply
    454,991.67x = 682,487.53 × 155,474.73
  4. Step 4: Simplify right side
    454,991.67x = 106,109,564,066.43
  5. Step 5: Solve for x
    x = 106,109,564,066.43/454,991.67
  6. Step 6: Final answer
    x = 233,212.10

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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.