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Finding the Fourth Proportional to 568,334.49, 784,245.75 and 313,669.28

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Solution

The fourth proportional to 568,334.49, 784,245.75 and 313,669.28 is: 432,832.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,334.49 : 784,245.75 = 313,669.28 : x
  2. Step 2: Convert to fraction form
    568,334.49/784,245.75 = 313,669.28/x
  3. Step 3: Cross multiply
    568,334.49x = 784,245.75 × 313,669.28
  4. Step 4: Simplify right side
    568,334.49x = 245,993,795,824.33
  5. Step 5: Solve for x
    x = 245,993,795,824.33/568,334.49
  6. Step 6: Final answer
    x = 432,832.78

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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.