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Finding the Fourth Proportional to 336,573.20, 504,608.70 and 203,425.40

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Solution

The fourth proportional to 336,573.20, 504,608.70 and 203,425.40 is: 304,986.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,573.20 : 504,608.70 = 203,425.40 : x
  2. Step 2: Convert to fraction form
    336,573.20/504,608.70 = 203,425.40/x
  3. Step 3: Cross multiply
    336,573.20x = 504,608.70 × 203,425.40
  4. Step 4: Simplify right side
    336,573.20x = 102,650,226,640.98
  5. Step 5: Solve for x
    x = 102,650,226,640.98/336,573.20
  6. Step 6: Final answer
    x = 304,986.33

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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.