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Finding the Fourth Proportional to 479,400.44, 718,410.26 and 329,809.64

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Solution

The fourth proportional to 479,400.44, 718,410.26 and 329,809.64 is: 494,239.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,400.44 : 718,410.26 = 329,809.64 : x
  2. Step 2: Convert to fraction form
    479,400.44/718,410.26 = 329,809.64/x
  3. Step 3: Cross multiply
    479,400.44x = 718,410.26 × 329,809.64
  4. Step 4: Simplify right side
    479,400.44x = 236,938,629,222.91
  5. Step 5: Solve for x
    x = 236,938,629,222.91/479,400.44
  6. Step 6: Final answer
    x = 494,239.49

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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.