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Finding the Fourth Proportional to 373,418.44, 515,170.74 and 229,929.64

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Solution

The fourth proportional to 373,418.44, 515,170.74 and 229,929.64 is: 317,212.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,418.44 : 515,170.74 = 229,929.64 : x
  2. Step 2: Convert to fraction form
    373,418.44/515,170.74 = 229,929.64/x
  3. Step 3: Cross multiply
    373,418.44x = 515,170.74 × 229,929.64
  4. Step 4: Simplify right side
    373,418.44x = 118,453,022,786.73
  5. Step 5: Solve for x
    x = 118,453,022,786.73/373,418.44
  6. Step 6: Final answer
    x = 317,212.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.