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Finding the Fourth Proportional to 373,767.30, 515,793.42 and 203,990.22

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Solution

The fourth proportional to 373,767.30, 515,793.42 and 203,990.22 is: 281,503.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,767.30 : 515,793.42 = 203,990.22 : x
  2. Step 2: Convert to fraction form
    373,767.30/515,793.42 = 203,990.22/x
  3. Step 3: Cross multiply
    373,767.30x = 515,793.42 × 203,990.22
  4. Step 4: Simplify right side
    373,767.30x = 105,216,813,220.35
  5. Step 5: Solve for x
    x = 105,216,813,220.35/373,767.30
  6. Step 6: Final answer
    x = 281,503.53

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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.