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Finding the Fourth Proportional to 488,771.82, 673,798.30 and 343,134.12

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Solution

The fourth proportional to 488,771.82, 673,798.30 and 343,134.12 is: 473,028.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,771.82 : 673,798.30 = 343,134.12 : x
  2. Step 2: Convert to fraction form
    488,771.82/673,798.30 = 343,134.12/x
  3. Step 3: Cross multiply
    488,771.82x = 673,798.30 × 343,134.12
  4. Step 4: Simplify right side
    488,771.82x = 231,203,188,396.90
  5. Step 5: Solve for x
    x = 231,203,188,396.90/488,771.82
  6. Step 6: Final answer
    x = 473,028.88

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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.