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Finding the Fourth Proportional to 331,343.40, 497,015.10 and 229,866.60

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Solution

The fourth proportional to 331,343.40, 497,015.10 and 229,866.60 is: 344,799.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,343.40 : 497,015.10 = 229,866.60 : x
  2. Step 2: Convert to fraction form
    331,343.40/497,015.10 = 229,866.60/x
  3. Step 3: Cross multiply
    331,343.40x = 497,015.10 × 229,866.60
  4. Step 4: Simplify right side
    331,343.40x = 114,247,171,185.66
  5. Step 5: Solve for x
    x = 114,247,171,185.66/331,343.40
  6. Step 6: Final answer
    x = 344,799.90

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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.