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Finding the Fourth Proportional to 695,842.50, 960,262.66 and 394,094.82

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Solution

The fourth proportional to 695,842.50, 960,262.66 and 394,094.82 is: 543,850.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,842.50 : 960,262.66 = 394,094.82 : x
  2. Step 2: Convert to fraction form
    695,842.50/960,262.66 = 394,094.82/x
  3. Step 3: Cross multiply
    695,842.50x = 960,262.66 × 394,094.82
  4. Step 4: Simplify right side
    695,842.50x = 378,434,540,145.42
  5. Step 5: Solve for x
    x = 378,434,540,145.42/695,842.50
  6. Step 6: Final answer
    x = 543,850.86

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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.