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Finding the Fourth Proportional to 481,696.46, 664,781.63 and 266,856.51

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Solution

The fourth proportional to 481,696.46, 664,781.63 and 266,856.51 is: 368,284.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,696.46 : 664,781.63 = 266,856.51 : x
  2. Step 2: Convert to fraction form
    481,696.46/664,781.63 = 266,856.51/x
  3. Step 3: Cross multiply
    481,696.46x = 664,781.63 × 266,856.51
  4. Step 4: Simplify right side
    481,696.46x = 177,401,305,693.91
  5. Step 5: Solve for x
    x = 177,401,305,693.91/481,696.46
  6. Step 6: Final answer
    x = 368,284.43

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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.