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Finding the Fourth Proportional to 568,379.12, 852,471.78 and 189,256.86

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Solution

The fourth proportional to 568,379.12, 852,471.78 and 189,256.86 is: 283,853.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,379.12 : 852,471.78 = 189,256.86 : x
  2. Step 2: Convert to fraction form
    568,379.12/852,471.78 = 189,256.86/x
  3. Step 3: Cross multiply
    568,379.12x = 852,471.78 × 189,256.86
  4. Step 4: Simplify right side
    568,379.12x = 161,336,132,321.41
  5. Step 5: Solve for x
    x = 161,336,132,321.41/568,379.12
  6. Step 6: Final answer
    x = 283,853.02

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Double scale
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Similar ratio
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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.