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Finding the Fourth Proportional to 394,653.89, 592,129.97 and 236,992.25

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Solution

The fourth proportional to 394,653.89, 592,129.97 and 236,992.25 is: 355,577.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,653.89 : 592,129.97 = 236,992.25 : x
  2. Step 2: Convert to fraction form
    394,653.89/592,129.97 = 236,992.25/x
  3. Step 3: Cross multiply
    394,653.89x = 592,129.97 × 236,992.25
  4. Step 4: Simplify right side
    394,653.89x = 140,330,209,737.12
  5. Step 5: Solve for x
    x = 140,330,209,737.12/394,653.89
  6. Step 6: Final answer
    x = 355,577.93

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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.