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Finding the Fourth Proportional to 363,575.21, 501,754.49 and 218,425.39

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Solution

The fourth proportional to 363,575.21, 501,754.49 and 218,425.39 is: 301,439.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,575.21 : 501,754.49 = 218,425.39 : x
  2. Step 2: Convert to fraction form
    363,575.21/501,754.49 = 218,425.39/x
  3. Step 3: Cross multiply
    363,575.21x = 501,754.49 × 218,425.39
  4. Step 4: Simplify right side
    363,575.21x = 109,595,916,561.60
  5. Step 5: Solve for x
    x = 109,595,916,561.60/363,575.21
  6. Step 6: Final answer
    x = 301,439.46

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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.