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Finding the Fourth Proportional to 481,256.64, 664,105.64 and 266,383.89

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Solution

The fourth proportional to 481,256.64, 664,105.64 and 266,383.89 is: 367,593.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,256.64 : 664,105.64 = 266,383.89 : x
  2. Step 2: Convert to fraction form
    481,256.64/664,105.64 = 266,383.89/x
  3. Step 3: Cross multiply
    481,256.64x = 664,105.64 × 266,383.89
  4. Step 4: Simplify right side
    481,256.64x = 176,907,042,422.22
  5. Step 5: Solve for x
    x = 176,907,042,422.22/481,256.64
  6. Step 6: Final answer
    x = 367,593.98

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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.