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Finding the Fourth Proportional to 568,568.56, 784,636.86 and 313,935.88

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Solution

The fourth proportional to 568,568.56, 784,636.86 and 313,935.88 is: 433,238.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,568.56 : 784,636.86 = 313,935.88 : x
  2. Step 2: Convert to fraction form
    568,568.56/784,636.86 = 313,935.88/x
  3. Step 3: Cross multiply
    568,568.56x = 784,636.86 × 313,935.88
  4. Step 4: Simplify right side
    568,568.56x = 246,325,663,124.54
  5. Step 5: Solve for x
    x = 246,325,663,124.54/568,568.56
  6. Step 6: Final answer
    x = 433,238.28

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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.