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Finding the Fourth Proportional to 411,981.75, 568,486.96 and 239,937.32

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Solution

The fourth proportional to 411,981.75, 568,486.96 and 239,937.32 is: 331,085.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,981.75 : 568,486.96 = 239,937.32 : x
  2. Step 2: Convert to fraction form
    411,981.75/568,486.96 = 239,937.32/x
  3. Step 3: Cross multiply
    411,981.75x = 568,486.96 × 239,937.32
  4. Step 4: Simplify right side
    411,981.75x = 136,401,238,458.72
  5. Step 5: Solve for x
    x = 136,401,238,458.72/411,981.75
  6. Step 6: Final answer
    x = 331,085.63

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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.