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Finding the Fourth Proportional to 481,644.72, 664,669.76 and 266,798.70

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Solution

The fourth proportional to 481,644.72, 664,669.76 and 266,798.70 is: 368,182.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,644.72 : 664,669.76 = 266,798.70 : x
  2. Step 2: Convert to fraction form
    481,644.72/664,669.76 = 266,798.70/x
  3. Step 3: Cross multiply
    481,644.72x = 664,669.76 × 266,798.70
  4. Step 4: Simplify right side
    481,644.72x = 177,333,027,897.31
  5. Step 5: Solve for x
    x = 177,333,027,897.31/481,644.72
  6. Step 6: Final answer
    x = 368,182.23

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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.