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Finding the Fourth Proportional to 373,620.75, 515,596.34 and 203,854.88

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Solution

The fourth proportional to 373,620.75, 515,596.34 and 203,854.88 is: 281,319.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,620.75 : 515,596.34 = 203,854.88 : x
  2. Step 2: Convert to fraction form
    373,620.75/515,596.34 = 203,854.88/x
  3. Step 3: Cross multiply
    373,620.75x = 515,596.34 × 203,854.88
  4. Step 4: Simplify right side
    373,620.75x = 105,106,827,770.85
  5. Step 5: Solve for x
    x = 105,106,827,770.85/373,620.75
  6. Step 6: Final answer
    x = 281,319.57

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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.