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Finding the Fourth Proportional to 394,054.44, 591,164.69 and 127,794.20

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Solution

The fourth proportional to 394,054.44, 591,164.69 and 127,794.20 is: 191,718.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,054.44 : 591,164.69 = 127,794.20 : x
  2. Step 2: Convert to fraction form
    394,054.44/591,164.69 = 127,794.20/x
  3. Step 3: Cross multiply
    394,054.44x = 591,164.69 × 127,794.20
  4. Step 4: Simplify right side
    394,054.44x = 75,547,415,032.00
  5. Step 5: Solve for x
    x = 75,547,415,032.00/394,054.44
  6. Step 6: Final answer
    x = 191,718.22

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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.