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Finding the Fourth Proportional to 631,893.83, 871,800.67 and 359,769.26

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Solution

The fourth proportional to 631,893.83, 871,800.67 and 359,769.26 is: 496,360.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,893.83 : 871,800.67 = 359,769.26 : x
  2. Step 2: Convert to fraction form
    631,893.83/871,800.67 = 359,769.26/x
  3. Step 3: Cross multiply
    631,893.83x = 871,800.67 × 359,769.26
  4. Step 4: Simplify right side
    631,893.83x = 313,647,084,542.62
  5. Step 5: Solve for x
    x = 313,647,084,542.62/631,893.83
  6. Step 6: Final answer
    x = 496,360.42

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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.