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Finding the Fourth Proportional to 319,517.73, 440,919.08 and 174,314.87

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Solution

The fourth proportional to 319,517.73, 440,919.08 and 174,314.87 is: 240,546.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,517.73 : 440,919.08 = 174,314.87 : x
  2. Step 2: Convert to fraction form
    319,517.73/440,919.08 = 174,314.87/x
  3. Step 3: Cross multiply
    319,517.73x = 440,919.08 × 174,314.87
  4. Step 4: Simplify right side
    319,517.73x = 76,858,751,341.68
  5. Step 5: Solve for x
    x = 76,858,751,341.68/319,517.73
  6. Step 6: Final answer
    x = 240,546.12

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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.