Home / 419,904,730.80-629,857,096.20-353,391,937.20

Finding the Fourth Proportional to 419,904,730.80, 629,857,096.20 and 353,391,937.20

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Solution

The fourth proportional to 419,904,730.80, 629,857,096.20 and 353,391,937.20 is: 530,087,905.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,730.80 : 629,857,096.20 = 353,391,937.20 : x
  2. Step 2: Convert to fraction form
    419,904,730.80/629,857,096.20 = 353,391,937.20/x
  3. Step 3: Cross multiply
    419,904,730.80x = 629,857,096.20 × 353,391,937.20
  4. Step 4: Simplify right side
    419,904,730.80x = 222,586,419,385,284,768
  5. Step 5: Solve for x
    x = 222,586,419,385,284,768/419,904,730.80
  6. Step 6: Final answer
    x = 530,087,905.80

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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.