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Finding the Fourth Proportional to 694,845, 958,912.02 and 393,032.52

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Solution

The fourth proportional to 694,845, 958,912.02 and 393,032.52 is: 542,399.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,845 : 958,912.02 = 393,032.52 : x
  2. Step 2: Convert to fraction form
    694,845/958,912.02 = 393,032.52/x
  3. Step 3: Cross multiply
    694,845x = 958,912.02 × 393,032.52
  4. Step 4: Simplify right side
    694,845x = 376,883,607,678.89
  5. Step 5: Solve for x
    x = 376,883,607,678.89/694,845
  6. Step 6: Final answer
    x = 542,399.54

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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.