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Finding the Fourth Proportional to 394,324.53, 544,168.11 and 213,036.36

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Solution

The fourth proportional to 394,324.53, 544,168.11 and 213,036.36 is: 293,990.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,324.53 : 544,168.11 = 213,036.36 : x
  2. Step 2: Convert to fraction form
    394,324.53/544,168.11 = 213,036.36/x
  3. Step 3: Cross multiply
    394,324.53x = 544,168.11 × 213,036.36
  4. Step 4: Simplify right side
    394,324.53x = 115,927,593,382.48
  5. Step 5: Solve for x
    x = 115,927,593,382.48/394,324.53
  6. Step 6: Final answer
    x = 293,990.32

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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.