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Finding the Fourth Proportional to 492,891.06, 680,189.67 and 266,536.56

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Solution

The fourth proportional to 492,891.06, 680,189.67 and 266,536.56 is: 367,820.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,891.06 : 680,189.67 = 266,536.56 : x
  2. Step 2: Convert to fraction form
    492,891.06/680,189.67 = 266,536.56/x
  3. Step 3: Cross multiply
    492,891.06x = 680,189.67 × 266,536.56
  4. Step 4: Simplify right side
    492,891.06x = 181,295,414,789.34
  5. Step 5: Solve for x
    x = 181,295,414,789.34/492,891.06
  6. Step 6: Final answer
    x = 367,820.46

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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.