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Finding the Fourth Proportional to 445,796.70, 615,187.44 and 271,301.46

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Solution

The fourth proportional to 445,796.70, 615,187.44 and 271,301.46 is: 374,388.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,796.70 : 615,187.44 = 271,301.46 : x
  2. Step 2: Convert to fraction form
    445,796.70/615,187.44 = 271,301.46/x
  3. Step 3: Cross multiply
    445,796.70x = 615,187.44 × 271,301.46
  4. Step 4: Simplify right side
    445,796.70x = 166,901,250,645.66
  5. Step 5: Solve for x
    x = 166,901,250,645.66/445,796.70
  6. Step 6: Final answer
    x = 374,388.71

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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.