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Finding the Fourth Proportional to 568,186.92, 784,142.19 and 326,553.78

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Solution

The fourth proportional to 568,186.92, 784,142.19 and 326,553.78 is: 450,669.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,186.92 : 784,142.19 = 326,553.78 : x
  2. Step 2: Convert to fraction form
    568,186.92/784,142.19 = 326,553.78/x
  3. Step 3: Cross multiply
    568,186.92x = 784,142.19 × 326,553.78
  4. Step 4: Simplify right side
    568,186.92x = 256,064,596,201.98
  5. Step 5: Solve for x
    x = 256,064,596,201.98/568,186.92
  6. Step 6: Final answer
    x = 450,669.64

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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.