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Finding the Fourth Proportional to 324,883.19, 487,380.27 and 100,239.41

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Solution

The fourth proportional to 324,883.19, 487,380.27 and 100,239.41 is: 150,376.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,883.19 : 487,380.27 = 100,239.41 : x
  2. Step 2: Convert to fraction form
    324,883.19/487,380.27 = 100,239.41/x
  3. Step 3: Cross multiply
    324,883.19x = 487,380.27 × 100,239.41
  4. Step 4: Simplify right side
    324,883.19x = 48,854,708,273.54
  5. Step 5: Solve for x
    x = 48,854,708,273.54/324,883.19
  6. Step 6: Final answer
    x = 150,376.23

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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.