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Finding the Fourth Proportional to 394,411.67, 591,883.73 and 154,495.82

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Solution

The fourth proportional to 394,411.67, 591,883.73 and 154,495.82 is: 231,848.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,411.67 : 591,883.73 = 154,495.82 : x
  2. Step 2: Convert to fraction form
    394,411.67/591,883.73 = 154,495.82/x
  3. Step 3: Cross multiply
    394,411.67x = 591,883.73 × 154,495.82
  4. Step 4: Simplify right side
    394,411.67x = 91,443,561,438.53
  5. Step 5: Solve for x
    x = 91,443,561,438.53/394,411.67
  6. Step 6: Final answer
    x = 231,848.01

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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.