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Finding the Fourth Proportional to 568,311.94, 784,266.60 and 313,663.15

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Solution

The fourth proportional to 568,311.94, 784,266.60 and 313,663.15 is: 432,853.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,311.94 : 784,266.60 = 313,663.15 : x
  2. Step 2: Convert to fraction form
    568,311.94/784,266.60 = 313,663.15/x
  3. Step 3: Cross multiply
    568,311.94x = 784,266.60 × 313,663.15
  4. Step 4: Simplify right side
    568,311.94x = 245,995,532,195.79
  5. Step 5: Solve for x
    x = 245,995,532,195.79/568,311.94
  6. Step 6: Final answer
    x = 432,853.01

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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.