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Finding the Fourth Proportional to 606,078, 909,121.56 and 269,028.05

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Solution

The fourth proportional to 606,078, 909,121.56 and 269,028.05 is: 403,544.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,078 : 909,121.56 = 269,028.05 : x
  2. Step 2: Convert to fraction form
    606,078/909,121.56 = 269,028.05/x
  3. Step 3: Cross multiply
    606,078x = 909,121.56 × 269,028.05
  4. Step 4: Simplify right side
    606,078x = 244,579,194,945.30
  5. Step 5: Solve for x
    x = 244,579,194,945.30/606,078
  6. Step 6: Final answer
    x = 403,544.09

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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.