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Finding the Fourth Proportional to 568,388.88, 784,356.82 and 338,827.69

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Solution

The fourth proportional to 568,388.88, 784,356.82 and 338,827.69 is: 467,570.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,388.88 : 784,356.82 = 338,827.69 : x
  2. Step 2: Convert to fraction form
    568,388.88/784,356.82 = 338,827.69/x
  3. Step 3: Cross multiply
    568,388.88x = 784,356.82 × 338,827.69
  4. Step 4: Simplify right side
    568,388.88x = 265,761,809,589.72
  5. Step 5: Solve for x
    x = 265,761,809,589.72/568,388.88
  6. Step 6: Final answer
    x = 467,570.39

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Double scale
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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.