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Finding the Fourth Proportional to 373,843.68, 515,843.46 and 220,860.60

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Solution

The fourth proportional to 373,843.68, 515,843.46 and 220,860.60 is: 304,751.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,843.68 : 515,843.46 = 220,860.60 : x
  2. Step 2: Convert to fraction form
    373,843.68/515,843.46 = 220,860.60/x
  3. Step 3: Cross multiply
    373,843.68x = 515,843.46 × 220,860.60
  4. Step 4: Simplify right side
    373,843.68x = 113,929,496,081.68
  5. Step 5: Solve for x
    x = 113,929,496,081.68/373,843.68
  6. Step 6: Final answer
    x = 304,751.70

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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.