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Finding the Fourth Proportional to 568,333.99, 784,245.07 and 313,668.78

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Solution

The fourth proportional to 568,333.99, 784,245.07 and 313,668.78 is: 432,832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,333.99 : 784,245.07 = 313,668.78 : x
  2. Step 2: Convert to fraction form
    568,333.99/784,245.07 = 313,668.78/x
  3. Step 3: Cross multiply
    568,333.99x = 784,245.07 × 313,668.78
  4. Step 4: Simplify right side
    568,333.99x = 245,993,194,327.92
  5. Step 5: Solve for x
    x = 245,993,194,327.92/568,333.99
  6. Step 6: Final answer
    x = 432,832.10

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1.5x scale

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.