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Finding the Fourth Proportional to 220,224.48, 303,935.28 and 206,712.96

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Solution

The fourth proportional to 220,224.48, 303,935.28 and 206,712.96 is: 285,287.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,224.48 : 303,935.28 = 206,712.96 : x
  2. Step 2: Convert to fraction form
    220,224.48/303,935.28 = 206,712.96/x
  3. Step 3: Cross multiply
    220,224.48x = 303,935.28 × 206,712.96
  4. Step 4: Simplify right side
    220,224.48x = 62,827,361,377.23
  5. Step 5: Solve for x
    x = 62,827,361,377.23/220,224.48
  6. Step 6: Final answer
    x = 285,287.82

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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.