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Finding the Fourth Proportional to 606,078.50, 909,122.31 and 269,028.55

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Solution

The fourth proportional to 606,078.50, 909,122.31 and 269,028.55 is: 403,544.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,078.50 : 909,122.31 = 269,028.55 : x
  2. Step 2: Convert to fraction form
    606,078.50/909,122.31 = 269,028.55/x
  3. Step 3: Cross multiply
    606,078.50x = 909,122.31 × 269,028.55
  4. Step 4: Simplify right side
    606,078.50x = 244,579,850,941.20
  5. Step 5: Solve for x
    x = 244,579,850,941.20/606,078.50
  6. Step 6: Final answer
    x = 403,544.84

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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.