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Finding the Fourth Proportional to 419,398.32, 629,098.59 and 194,730.24

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Solution

The fourth proportional to 419,398.32, 629,098.59 and 194,730.24 is: 292,095.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,398.32 : 629,098.59 = 194,730.24 : x
  2. Step 2: Convert to fraction form
    419,398.32/629,098.59 = 194,730.24/x
  3. Step 3: Cross multiply
    419,398.32x = 629,098.59 × 194,730.24
  4. Step 4: Simplify right side
    419,398.32x = 122,504,519,414.36
  5. Step 5: Solve for x
    x = 122,504,519,414.36/419,398.32
  6. Step 6: Final answer
    x = 292,095.88

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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.