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Finding the Fourth Proportional to 411,818.60, 568,309.88 and 230,530.88

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Solution

The fourth proportional to 411,818.60, 568,309.88 and 230,530.88 is: 318,132.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,818.60 : 568,309.88 = 230,530.88 : x
  2. Step 2: Convert to fraction form
    411,818.60/568,309.88 = 230,530.88/x
  3. Step 3: Cross multiply
    411,818.60x = 568,309.88 × 230,530.88
  4. Step 4: Simplify right side
    411,818.60x = 131,012,976,749.09
  5. Step 5: Solve for x
    x = 131,012,976,749.09/411,818.60
  6. Step 6: Final answer
    x = 318,132.73

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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.