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Finding the Fourth Proportional to 568,487.72, 784,797.18 and 353,697.32

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Solution

The fourth proportional to 568,487.72, 784,797.18 and 353,697.32 is: 488,279.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,487.72 : 784,797.18 = 353,697.32 : x
  2. Step 2: Convert to fraction form
    568,487.72/784,797.18 = 353,697.32/x
  3. Step 3: Cross multiply
    568,487.72x = 784,797.18 × 353,697.32
  4. Step 4: Simplify right side
    568,487.72x = 277,580,659,309.56
  5. Step 5: Solve for x
    x = 277,580,659,309.56/568,487.72
  6. Step 6: Final answer
    x = 488,279.08

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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.