Home / 419,904,987.80-629,857,481.70-353,392,194.20

Finding the Fourth Proportional to 419,904,987.80, 629,857,481.70 and 353,392,194.20

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Solution

The fourth proportional to 419,904,987.80, 629,857,481.70 and 353,392,194.20 is: 530,088,291.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,987.80 : 629,857,481.70 = 353,392,194.20 : x
  2. Step 2: Convert to fraction form
    419,904,987.80/629,857,481.70 = 353,392,194.20/x
  3. Step 3: Cross multiply
    419,904,987.80x = 629,857,481.70 × 353,392,194.20
  4. Step 4: Simplify right side
    419,904,987.80x = 222,586,717,491,249,344
  5. Step 5: Solve for x
    x = 222,586,717,491,249,344/419,904,987.80
  6. Step 6: Final answer
    x = 530,088,291.30

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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.