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Finding the Fourth Proportional to 398,783.44, 550,434.96 and 226,794.12

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Solution

The fourth proportional to 398,783.44, 550,434.96 and 226,794.12 is: 313,040.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,783.44 : 550,434.96 = 226,794.12 : x
  2. Step 2: Convert to fraction form
    398,783.44/550,434.96 = 226,794.12/x
  3. Step 3: Cross multiply
    398,783.44x = 550,434.96 × 226,794.12
  4. Step 4: Simplify right side
    398,783.44x = 124,835,412,370.44
  5. Step 5: Solve for x
    x = 124,835,412,370.44/398,783.44
  6. Step 6: Final answer
    x = 313,040.61

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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.