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Finding the Fourth Proportional to 404,540.46, 606,634.20 and 214,955.10

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Solution

The fourth proportional to 404,540.46, 606,634.20 and 214,955.10 is: 322,338.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,540.46 : 606,634.20 = 214,955.10 : x
  2. Step 2: Convert to fraction form
    404,540.46/606,634.20 = 214,955.10/x
  3. Step 3: Cross multiply
    404,540.46x = 606,634.20 × 214,955.10
  4. Step 4: Simplify right side
    404,540.46x = 130,399,115,124.42
  5. Step 5: Solve for x
    x = 130,399,115,124.42/404,540.46
  6. Step 6: Final answer
    x = 322,338.87

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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.