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Finding the Fourth Proportional to 431,723.80, 646,710.90 and 244,516.60

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Solution

The fourth proportional to 431,723.80, 646,710.90 and 244,516.60 is: 366,279.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,723.80 : 646,710.90 = 244,516.60 : x
  2. Step 2: Convert to fraction form
    431,723.80/646,710.90 = 244,516.60/x
  3. Step 3: Cross multiply
    431,723.80x = 646,710.90 × 244,516.60
  4. Step 4: Simplify right side
    431,723.80x = 158,131,550,450.94
  5. Step 5: Solve for x
    x = 158,131,550,450.94/431,723.80
  6. Step 6: Final answer
    x = 366,279.44

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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.