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Finding the Fourth Proportional to 325,610.10, 488,415.15 and 192,421.80

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Solution

The fourth proportional to 325,610.10, 488,415.15 and 192,421.80 is: 288,632.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,610.10 : 488,415.15 = 192,421.80 : x
  2. Step 2: Convert to fraction form
    325,610.10/488,415.15 = 192,421.80/x
  3. Step 3: Cross multiply
    325,610.10x = 488,415.15 × 192,421.80
  4. Step 4: Simplify right side
    325,610.10x = 93,981,722,310.27
  5. Step 5: Solve for x
    x = 93,981,722,310.27/325,610.10
  6. Step 6: Final answer
    x = 288,632.70

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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.