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Finding the Fourth Proportional to 568,366.69, 784,346.10 and 313,717.95

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Solution

The fourth proportional to 568,366.69, 784,346.10 and 313,717.95 is: 432,930.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,366.69 : 784,346.10 = 313,717.95 : x
  2. Step 2: Convert to fraction form
    568,366.69/784,346.10 = 313,717.95/x
  3. Step 3: Cross multiply
    568,366.69x = 784,346.10 × 313,717.95
  4. Step 4: Simplify right side
    568,366.69x = 246,063,450,582.50
  5. Step 5: Solve for x
    x = 246,063,450,582.50/568,366.69
  6. Step 6: Final answer
    x = 432,930.81

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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.