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Finding the Fourth Proportional to 373,321.44, 515,185.92 and 203,558.40

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Solution

The fourth proportional to 373,321.44, 515,185.92 and 203,558.40 is: 280,911.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,321.44 : 515,185.92 = 203,558.40 : x
  2. Step 2: Convert to fraction form
    373,321.44/515,185.92 = 203,558.40/x
  3. Step 3: Cross multiply
    373,321.44x = 515,185.92 × 203,558.40
  4. Step 4: Simplify right side
    373,321.44x = 104,870,421,577.73
  5. Step 5: Solve for x
    x = 104,870,421,577.73/373,321.44
  6. Step 6: Final answer
    x = 280,911.86

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1.5x scale

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.