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Finding the Fourth Proportional to 363,478.60, 543,921.90 and 230,422.60

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Solution

The fourth proportional to 363,478.60, 543,921.90 and 230,422.60 is: 344,812.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,478.60 : 543,921.90 = 230,422.60 : x
  2. Step 2: Convert to fraction form
    363,478.60/543,921.90 = 230,422.60/x
  3. Step 3: Cross multiply
    363,478.60x = 543,921.90 × 230,422.60
  4. Step 4: Simplify right side
    363,478.60x = 125,331,898,394.94
  5. Step 5: Solve for x
    x = 125,331,898,394.94/363,478.60
  6. Step 6: Final answer
    x = 344,812.32

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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.