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Finding the Fourth Proportional to 363,321.60, 501,304.32 and 212,349.44

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Solution

The fourth proportional to 363,321.60, 501,304.32 and 212,349.44 is: 292,995.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,321.60 : 501,304.32 = 212,349.44 : x
  2. Step 2: Convert to fraction form
    363,321.60/501,304.32 = 212,349.44/x
  3. Step 3: Cross multiply
    363,321.60x = 501,304.32 × 212,349.44
  4. Step 4: Simplify right side
    363,321.60x = 106,451,691,621.58
  5. Step 5: Solve for x
    x = 106,451,691,621.58/363,321.60
  6. Step 6: Final answer
    x = 292,995.77

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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.