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Finding the Fourth Proportional to 489,028.40, 733,463.86 and 133,959.44

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Solution

The fourth proportional to 489,028.40, 733,463.86 and 133,959.44 is: 200,917.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,028.40 : 733,463.86 = 133,959.44 : x
  2. Step 2: Convert to fraction form
    489,028.40/733,463.86 = 133,959.44/x
  3. Step 3: Cross multiply
    489,028.40x = 733,463.86 × 133,959.44
  4. Step 4: Simplify right side
    489,028.40x = 98,254,407,945.84
  5. Step 5: Solve for x
    x = 98,254,407,945.84/489,028.40
  6. Step 6: Final answer
    x = 200,917.59

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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.