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Finding the Fourth Proportional to 341,640.66, 512,408.43 and 113,940.28

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Solution

The fourth proportional to 341,640.66, 512,408.43 and 113,940.28 is: 170,892.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,640.66 : 512,408.43 = 113,940.28 : x
  2. Step 2: Convert to fraction form
    341,640.66/512,408.43 = 113,940.28/x
  3. Step 3: Cross multiply
    341,640.66x = 512,408.43 × 113,940.28
  4. Step 4: Simplify right side
    341,640.66x = 58,383,958,707.54
  5. Step 5: Solve for x
    x = 58,383,958,707.54/341,640.66
  6. Step 6: Final answer
    x = 170,892.89

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1.5x scale

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.