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Finding the Fourth Proportional to 324,376.40, 486,370.20 and 166,912.40

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Solution

The fourth proportional to 324,376.40, 486,370.20 and 166,912.40 is: 250,268.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,376.40 : 486,370.20 = 166,912.40 : x
  2. Step 2: Convert to fraction form
    324,376.40/486,370.20 = 166,912.40/x
  3. Step 3: Cross multiply
    324,376.40x = 486,370.20 × 166,912.40
  4. Step 4: Simplify right side
    324,376.40x = 81,181,217,370.48
  5. Step 5: Solve for x
    x = 81,181,217,370.48/324,376.40
  6. Step 6: Final answer
    x = 250,268.57

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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.