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Finding the Fourth Proportional to 293,679.60, 440,519.40 and 192,640.20

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Solution

The fourth proportional to 293,679.60, 440,519.40 and 192,640.20 is: 288,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,679.60 : 440,519.40 = 192,640.20 : x
  2. Step 2: Convert to fraction form
    293,679.60/440,519.40 = 192,640.20/x
  3. Step 3: Cross multiply
    293,679.60x = 440,519.40 × 192,640.20
  4. Step 4: Simplify right side
    293,679.60x = 84,861,745,319.88
  5. Step 5: Solve for x
    x = 84,861,745,319.88/293,679.60
  6. Step 6: Final answer
    x = 288,960.30

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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.