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Finding the Fourth Proportional to 695,841.50, 960,261.28 and 394,093.82

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Solution

The fourth proportional to 695,841.50, 960,261.28 and 394,093.82 is: 543,849.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,841.50 : 960,261.28 = 394,093.82 : x
  2. Step 2: Convert to fraction form
    695,841.50/960,261.28 = 394,093.82/x
  3. Step 3: Cross multiply
    695,841.50x = 960,261.28 × 394,093.82
  4. Step 4: Simplify right side
    695,841.50x = 378,433,036,033.29
  5. Step 5: Solve for x
    x = 378,433,036,033.29/695,841.50
  6. Step 6: Final answer
    x = 543,849.48

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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.