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Finding the Fourth Proportional to 396,276.76, 594,023.64 and 253,716.22

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Solution

The fourth proportional to 396,276.76, 594,023.64 and 253,716.22 is: 380,323.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,276.76 : 594,023.64 = 253,716.22 : x
  2. Step 2: Convert to fraction form
    396,276.76/594,023.64 = 253,716.22/x
  3. Step 3: Cross multiply
    396,276.76x = 594,023.64 × 253,716.22
  4. Step 4: Simplify right side
    396,276.76x = 150,713,432,531.44
  5. Step 5: Solve for x
    x = 150,713,432,531.44/396,276.76
  6. Step 6: Final answer
    x = 380,323.67

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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.