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Finding the Fourth Proportional to 300,984.75, 415,356.17 and 165,026.25

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Solution

The fourth proportional to 300,984.75, 415,356.17 and 165,026.25 is: 227,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,984.75 : 415,356.17 = 165,026.25 : x
  2. Step 2: Convert to fraction form
    300,984.75/415,356.17 = 165,026.25/x
  3. Step 3: Cross multiply
    300,984.75x = 415,356.17 × 165,026.25
  4. Step 4: Simplify right side
    300,984.75x = 68,544,670,324.33
  5. Step 5: Solve for x
    x = 68,544,670,324.33/300,984.75
  6. Step 6: Final answer
    x = 227,734.70

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1.5x scale

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.