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Finding the Fourth Proportional to 568,201.86, 784,162.89 and 326,568.78

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Solution

The fourth proportional to 568,201.86, 784,162.89 and 326,568.78 is: 450,690.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,201.86 : 784,162.89 = 326,568.78 : x
  2. Step 2: Convert to fraction form
    568,201.86/784,162.89 = 326,568.78/x
  3. Step 3: Cross multiply
    568,201.86x = 784,162.89 × 326,568.78
  4. Step 4: Simplify right side
    568,201.86x = 256,083,118,308.57
  5. Step 5: Solve for x
    x = 256,083,118,308.57/568,201.86
  6. Step 6: Final answer
    x = 450,690.39

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.