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Finding the Fourth Proportional to 400,255.56, 600,383.37 and 189,778.68

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Solution

The fourth proportional to 400,255.56, 600,383.37 and 189,778.68 is: 284,668.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,255.56 : 600,383.37 = 189,778.68 : x
  2. Step 2: Convert to fraction form
    400,255.56/600,383.37 = 189,778.68/x
  3. Step 3: Cross multiply
    400,255.56x = 600,383.37 × 189,778.68
  4. Step 4: Simplify right side
    400,255.56x = 113,939,963,452.55
  5. Step 5: Solve for x
    x = 113,939,963,452.55/400,255.56
  6. Step 6: Final answer
    x = 284,668.03

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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.