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Finding the Fourth Proportional to 568,118.61, 784,003.14 and 313,469.82

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Solution

The fourth proportional to 568,118.61, 784,003.14 and 313,469.82 is: 432,588.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,118.61 : 784,003.14 = 313,469.82 : x
  2. Step 2: Convert to fraction form
    568,118.61/784,003.14 = 313,469.82/x
  3. Step 3: Cross multiply
    568,118.61x = 784,003.14 × 313,469.82
  4. Step 4: Simplify right side
    568,118.61x = 245,761,323,175.24
  5. Step 5: Solve for x
    x = 245,761,323,175.24/568,118.61
  6. Step 6: Final answer
    x = 432,588.05

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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.