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Finding the Fourth Proportional to 568,198.88, 784,248.66 and 326,621.60

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Solution

The fourth proportional to 568,198.88, 784,248.66 and 326,621.60 is: 450,814.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,198.88 : 784,248.66 = 326,621.60 : x
  2. Step 2: Convert to fraction form
    568,198.88/784,248.66 = 326,621.60/x
  3. Step 3: Cross multiply
    568,198.88x = 784,248.66 × 326,621.60
  4. Step 4: Simplify right side
    568,198.88x = 256,152,552,127.06
  5. Step 5: Solve for x
    x = 256,152,552,127.06/568,198.88
  6. Step 6: Final answer
    x = 450,814.95

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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.