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Finding the Fourth Proportional to 322,419.87, 444,904.05 and 186,433.20

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Solution

The fourth proportional to 322,419.87, 444,904.05 and 186,433.20 is: 257,257.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,419.87 : 444,904.05 = 186,433.20 : x
  2. Step 2: Convert to fraction form
    322,419.87/444,904.05 = 186,433.20/x
  3. Step 3: Cross multiply
    322,419.87x = 444,904.05 × 186,433.20
  4. Step 4: Simplify right side
    322,419.87x = 82,944,885,734.46
  5. Step 5: Solve for x
    x = 82,944,885,734.46/322,419.87
  6. Step 6: Final answer
    x = 257,257.36

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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.