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Finding the Fourth Proportional to 568,387.26, 784,374.30 and 313,738.38

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Solution

The fourth proportional to 568,387.26, 784,374.30 and 313,738.38 is: 432,958.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,387.26 : 784,374.30 = 313,738.38 : x
  2. Step 2: Convert to fraction form
    568,387.26/784,374.30 = 313,738.38/x
  3. Step 3: Cross multiply
    568,387.26x = 784,374.30 × 313,738.38
  4. Step 4: Simplify right side
    568,387.26x = 246,088,322,195.63
  5. Step 5: Solve for x
    x = 246,088,322,195.63/568,387.26
  6. Step 6: Final answer
    x = 432,958.90

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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.