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Finding the Fourth Proportional to 568,088.20, 784,245.80 and 353,297.46

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Solution

The fourth proportional to 568,088.20, 784,245.80 and 353,297.46 is: 487,727.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,088.20 : 784,245.80 = 353,297.46 : x
  2. Step 2: Convert to fraction form
    568,088.20/784,245.80 = 353,297.46/x
  3. Step 3: Cross multiply
    568,088.20x = 784,245.80 × 353,297.46
  4. Step 4: Simplify right side
    568,088.20x = 277,072,049,919.72
  5. Step 5: Solve for x
    x = 277,072,049,919.72/568,088.20
  6. Step 6: Final answer
    x = 487,727.17

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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.