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Finding the Fourth Proportional to 398,782.44, 550,433.58 and 226,793.12

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Solution

The fourth proportional to 398,782.44, 550,433.58 and 226,793.12 is: 313,039.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,782.44 : 550,433.58 = 226,793.12 : x
  2. Step 2: Convert to fraction form
    398,782.44/550,433.58 = 226,793.12/x
  3. Step 3: Cross multiply
    398,782.44x = 550,433.58 × 226,793.12
  4. Step 4: Simplify right side
    398,782.44x = 124,834,545,358.33
  5. Step 5: Solve for x
    x = 124,834,545,358.33/398,782.44
  6. Step 6: Final answer
    x = 313,039.22

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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.