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Finding the Fourth Proportional to 262,990.80, 394,486.20 and 151,016.40

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Solution

The fourth proportional to 262,990.80, 394,486.20 and 151,016.40 is: 226,524.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,990.80 : 394,486.20 = 151,016.40 : x
  2. Step 2: Convert to fraction form
    262,990.80/394,486.20 = 151,016.40/x
  3. Step 3: Cross multiply
    262,990.80x = 394,486.20 × 151,016.40
  4. Step 4: Simplify right side
    262,990.80x = 59,573,885,773.68
  5. Step 5: Solve for x
    x = 59,573,885,773.68/262,990.80
  6. Step 6: Final answer
    x = 226,524.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.