Home / 419,739.30-629,265.87-195,239.70

Finding the Fourth Proportional to 419,739.30, 629,265.87 and 195,239.70

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Solution

The fourth proportional to 419,739.30, 629,265.87 and 195,239.70 is: 292,699.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,739.30 : 629,265.87 = 195,239.70 : x
  2. Step 2: Convert to fraction form
    419,739.30/629,265.87 = 195,239.70/x
  3. Step 3: Cross multiply
    419,739.30x = 629,265.87 × 195,239.70
  4. Step 4: Simplify right side
    419,739.30x = 122,857,679,679.04
  5. Step 5: Solve for x
    x = 122,857,679,679.04/419,739.30
  6. Step 6: Final answer
    x = 292,699.97

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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.