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Finding the Fourth Proportional to 557,241.44, 836,003.64 and 257,937.92

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Solution

The fourth proportional to 557,241.44, 836,003.64 and 257,937.92 is: 386,972.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,241.44 : 836,003.64 = 257,937.92 : x
  2. Step 2: Convert to fraction form
    557,241.44/836,003.64 = 257,937.92/x
  3. Step 3: Cross multiply
    557,241.44x = 836,003.64 × 257,937.92
  4. Step 4: Simplify right side
    557,241.44x = 215,637,040,014.03
  5. Step 5: Solve for x
    x = 215,637,040,014.03/557,241.44
  6. Step 6: Final answer
    x = 386,972.37

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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.