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Finding the Fourth Proportional to 294,076.80, 405,809.16 and 163,247.73

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Solution

The fourth proportional to 294,076.80, 405,809.16 and 163,247.73 is: 225,272.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,076.80 : 405,809.16 = 163,247.73 : x
  2. Step 2: Convert to fraction form
    294,076.80/405,809.16 = 163,247.73/x
  3. Step 3: Cross multiply
    294,076.80x = 405,809.16 × 163,247.73
  4. Step 4: Simplify right side
    294,076.80x = 66,247,424,183.21
  5. Step 5: Solve for x
    x = 66,247,424,183.21/294,076.80
  6. Step 6: Final answer
    x = 225,272.53

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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.