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Finding the Fourth Proportional to 568,367.10, 784,346.67 and 313,718.36

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Solution

The fourth proportional to 568,367.10, 784,346.67 and 313,718.36 is: 432,931.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,367.10 : 784,346.67 = 313,718.36 : x
  2. Step 2: Convert to fraction form
    568,367.10/784,346.67 = 313,718.36/x
  3. Step 3: Cross multiply
    568,367.10x = 784,346.67 × 313,718.36
  4. Step 4: Simplify right side
    568,367.10x = 246,063,945,493.54
  5. Step 5: Solve for x
    x = 246,063,945,493.54/568,367.10
  6. Step 6: Final answer
    x = 432,931.37

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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.