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Finding the Fourth Proportional to 568,573.56, 784,643.76 and 313,940.88

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Solution

The fourth proportional to 568,573.56, 784,643.76 and 313,940.88 is: 433,245.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,573.56 : 784,643.76 = 313,940.88 : x
  2. Step 2: Convert to fraction form
    568,573.56/784,643.76 = 313,940.88/x
  3. Step 3: Cross multiply
    568,573.56x = 784,643.76 × 313,940.88
  4. Step 4: Simplify right side
    568,573.56x = 246,331,752,500.91
  5. Step 5: Solve for x
    x = 246,331,752,500.91/568,573.56
  6. Step 6: Final answer
    x = 433,245.18

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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.