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Finding the Fourth Proportional to 386,105.13, 579,375.18 and 301,628.31

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Solution

The fourth proportional to 386,105.13, 579,375.18 and 301,628.31 is: 452,612.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,105.13 : 579,375.18 = 301,628.31 : x
  2. Step 2: Convert to fraction form
    386,105.13/579,375.18 = 301,628.31/x
  3. Step 3: Cross multiply
    386,105.13x = 579,375.18 × 301,628.31
  4. Step 4: Simplify right side
    386,105.13x = 174,755,954,226.69
  5. Step 5: Solve for x
    x = 174,755,954,226.69/386,105.13
  6. Step 6: Final answer
    x = 452,612.36

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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.