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Finding the Fourth Proportional to 587,093.28, 809,910.54 and 396,168.18

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Solution

The fourth proportional to 587,093.28, 809,910.54 and 396,168.18 is: 546,524.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,093.28 : 809,910.54 = 396,168.18 : x
  2. Step 2: Convert to fraction form
    587,093.28/809,910.54 = 396,168.18/x
  3. Step 3: Cross multiply
    587,093.28x = 809,910.54 × 396,168.18
  4. Step 4: Simplify right side
    587,093.28x = 320,860,784,594.62
  5. Step 5: Solve for x
    x = 320,860,784,594.62/587,093.28
  6. Step 6: Final answer
    x = 546,524.37

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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.