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Finding the Fourth Proportional to 609,864.66, 914,619.09 and 205,011.11

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Solution

The fourth proportional to 609,864.66, 914,619.09 and 205,011.11 is: 307,456.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,864.66 : 914,619.09 = 205,011.11 : x
  2. Step 2: Convert to fraction form
    609,864.66/914,619.09 = 205,011.11/x
  3. Step 3: Cross multiply
    609,864.66x = 914,619.09 × 205,011.11
  4. Step 4: Simplify right side
    609,864.66x = 187,507,073,621.28
  5. Step 5: Solve for x
    x = 187,507,073,621.28/609,864.66
  6. Step 6: Final answer
    x = 307,456.86

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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.