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Finding the Fourth Proportional to 476,857.55, 658,062.87 and 261,997.08

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Solution

The fourth proportional to 476,857.55, 658,062.87 and 261,997.08 is: 361,555.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,857.55 : 658,062.87 = 261,997.08 : x
  2. Step 2: Convert to fraction form
    476,857.55/658,062.87 = 261,997.08/x
  3. Step 3: Cross multiply
    476,857.55x = 658,062.87 × 261,997.08
  4. Step 4: Simplify right side
    476,857.55x = 172,410,550,396.42
  5. Step 5: Solve for x
    x = 172,410,550,396.42/476,857.55
  6. Step 6: Final answer
    x = 361,555.67

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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.