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Finding the Fourth Proportional to 325,838.91, 488,757.39 and 82,679.51

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Solution

The fourth proportional to 325,838.91, 488,757.39 and 82,679.51 is: 124,019.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,838.91 : 488,757.39 = 82,679.51 : x
  2. Step 2: Convert to fraction form
    325,838.91/488,757.39 = 82,679.51/x
  3. Step 3: Cross multiply
    325,838.91x = 488,757.39 × 82,679.51
  4. Step 4: Simplify right side
    325,838.91x = 40,410,221,514.08
  5. Step 5: Solve for x
    x = 40,410,221,514.08/325,838.91
  6. Step 6: Final answer
    x = 124,019.02

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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.