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Finding the Fourth Proportional to 577,758.64, 866,940.20 and 236,455.42

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Solution

The fourth proportional to 577,758.64, 866,940.20 and 236,455.42 is: 354,806.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,758.64 : 866,940.20 = 236,455.42 : x
  2. Step 2: Convert to fraction form
    577,758.64/866,940.20 = 236,455.42/x
  3. Step 3: Cross multiply
    577,758.64x = 866,940.20 × 236,455.42
  4. Step 4: Simplify right side
    577,758.64x = 204,992,709,105.88
  5. Step 5: Solve for x
    x = 204,992,709,105.88/577,758.64
  6. Step 6: Final answer
    x = 354,806.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.