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Finding the Fourth Proportional to 295,856.80, 443,785.20 and 225,872.80

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Solution

The fourth proportional to 295,856.80, 443,785.20 and 225,872.80 is: 338,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,856.80 : 443,785.20 = 225,872.80 : x
  2. Step 2: Convert to fraction form
    295,856.80/443,785.20 = 225,872.80/x
  3. Step 3: Cross multiply
    295,856.80x = 443,785.20 × 225,872.80
  4. Step 4: Simplify right side
    295,856.80x = 100,239,005,722.56
  5. Step 5: Solve for x
    x = 100,239,005,722.56/295,856.80
  6. Step 6: Final answer
    x = 338,809.20

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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.