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Finding the Fourth Proportional to 394,933.44, 545,005.44 and 216,085.44

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Solution

The fourth proportional to 394,933.44, 545,005.44 and 216,085.44 is: 298,196.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,933.44 : 545,005.44 = 216,085.44 : x
  2. Step 2: Convert to fraction form
    394,933.44/545,005.44 = 216,085.44/x
  3. Step 3: Cross multiply
    394,933.44x = 545,005.44 × 216,085.44
  4. Step 4: Simplify right side
    394,933.44x = 117,767,740,304.79
  5. Step 5: Solve for x
    x = 117,767,740,304.79/394,933.44
  6. Step 6: Final answer
    x = 298,196.43

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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.