Home / 419,983.40-629,902.20-153,606.80

Finding the Fourth Proportional to 419,983.40, 629,902.20 and 153,606.80

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Solution

The fourth proportional to 419,983.40, 629,902.20 and 153,606.80 is: 230,383.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,983.40 : 629,902.20 = 153,606.80 : x
  2. Step 2: Convert to fraction form
    419,983.40/629,902.20 = 153,606.80/x
  3. Step 3: Cross multiply
    419,983.40x = 629,902.20 × 153,606.80
  4. Step 4: Simplify right side
    419,983.40x = 96,757,261,254.96
  5. Step 5: Solve for x
    x = 96,757,261,254.96/419,983.40
  6. Step 6: Final answer
    x = 230,383.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.