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Finding the Fourth Proportional to 394,329.60, 544,060.80 and 233,107.20

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Solution

The fourth proportional to 394,329.60, 544,060.80 and 233,107.20 is: 321,620.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,329.60 : 544,060.80 = 233,107.20 : x
  2. Step 2: Convert to fraction form
    394,329.60/544,060.80 = 233,107.20/x
  3. Step 3: Cross multiply
    394,329.60x = 544,060.80 × 233,107.20
  4. Step 4: Simplify right side
    394,329.60x = 126,824,489,717.76
  5. Step 5: Solve for x
    x = 126,824,489,717.76/394,329.60
  6. Step 6: Final answer
    x = 321,620.52

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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.