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Finding the Fourth Proportional to 726,768.96, 1,088,781.92 and 372,008

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Solution

The fourth proportional to 726,768.96, 1,088,781.92 and 372,008 is: 557,309.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,768.96 : 1,088,781.92 = 372,008 : x
  2. Step 2: Convert to fraction form
    726,768.96/1,088,781.92 = 372,008/x
  3. Step 3: Cross multiply
    726,768.96x = 1,088,781.92 × 372,008
  4. Step 4: Simplify right side
    726,768.96x = 405,035,584,495.36
  5. Step 5: Solve for x
    x = 405,035,584,495.36/726,768.96
  6. Step 6: Final answer
    x = 557,309.97

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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.