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Finding the Fourth Proportional to 481,764.79, 664,781.61 and 266,851.54

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Solution

The fourth proportional to 481,764.79, 664,781.61 and 266,851.54 is: 368,225.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,764.79 : 664,781.61 = 266,851.54 : x
  2. Step 2: Convert to fraction form
    481,764.79/664,781.61 = 266,851.54/x
  3. Step 3: Cross multiply
    481,764.79x = 664,781.61 × 266,851.54
  4. Step 4: Simplify right side
    481,764.79x = 177,397,996,392.18
  5. Step 5: Solve for x
    x = 177,397,996,392.18/481,764.79
  6. Step 6: Final answer
    x = 368,225.33

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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.