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Finding the Fourth Proportional to 694,866.36, 958,906.44 and 393,060.36

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Solution

The fourth proportional to 694,866.36, 958,906.44 and 393,060.36 is: 542,418.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,866.36 : 958,906.44 = 393,060.36 : x
  2. Step 2: Convert to fraction form
    694,866.36/958,906.44 = 393,060.36/x
  3. Step 3: Cross multiply
    694,866.36x = 958,906.44 × 393,060.36
  4. Step 4: Simplify right side
    694,866.36x = 376,908,110,512.72
  5. Step 5: Solve for x
    x = 376,908,110,512.72/694,866.36
  6. Step 6: Final answer
    x = 542,418.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.