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Finding the Fourth Proportional to 482,906.12, 666,409.94 and 268,045.68

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Solution

The fourth proportional to 482,906.12, 666,409.94 and 268,045.68 is: 369,902.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,906.12 : 666,409.94 = 268,045.68 : x
  2. Step 2: Convert to fraction form
    482,906.12/666,409.94 = 268,045.68/x
  3. Step 3: Cross multiply
    482,906.12x = 666,409.94 × 268,045.68
  4. Step 4: Simplify right side
    482,906.12x = 178,628,305,526.06
  5. Step 5: Solve for x
    x = 178,628,305,526.06/482,906.12
  6. Step 6: Final answer
    x = 369,902.76

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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.