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Finding the Fourth Proportional to 611,080.41, 843,251.66 and 339,148.49

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Solution

The fourth proportional to 611,080.41, 843,251.66 and 339,148.49 is: 468,003.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,080.41 : 843,251.66 = 339,148.49 : x
  2. Step 2: Convert to fraction form
    611,080.41/843,251.66 = 339,148.49/x
  3. Step 3: Cross multiply
    611,080.41x = 843,251.66 × 339,148.49
  4. Step 4: Simplify right side
    611,080.41x = 285,987,521,266.99
  5. Step 5: Solve for x
    x = 285,987,521,266.99/611,080.41
  6. Step 6: Final answer
    x = 468,003.09

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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.