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Finding the Fourth Proportional to 568,189.78, 784,236.07 and 326,612.47

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Solution

The fourth proportional to 568,189.78, 784,236.07 and 326,612.47 is: 450,802.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,189.78 : 784,236.07 = 326,612.47 : x
  2. Step 2: Convert to fraction form
    568,189.78/784,236.07 = 326,612.47/x
  3. Step 3: Cross multiply
    568,189.78x = 784,236.07 × 326,612.47
  4. Step 4: Simplify right side
    568,189.78x = 256,141,284,743.30
  5. Step 5: Solve for x
    x = 256,141,284,743.30/568,189.78
  6. Step 6: Final answer
    x = 450,802.35

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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.