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Finding the Fourth Proportional to 492,788.72, 680,049.48 and 266,434.22

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Solution

The fourth proportional to 492,788.72, 680,049.48 and 266,434.22 is: 367,679.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,788.72 : 680,049.48 = 266,434.22 : x
  2. Step 2: Convert to fraction form
    492,788.72/680,049.48 = 266,434.22/x
  3. Step 3: Cross multiply
    492,788.72x = 680,049.48 × 266,434.22
  4. Step 4: Simplify right side
    492,788.72x = 181,188,452,765.21
  5. Step 5: Solve for x
    x = 181,188,452,765.21/492,788.72
  6. Step 6: Final answer
    x = 367,679.79

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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.