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Finding the Fourth Proportional to 481,470.15, 664,420.62 and 266,605.59

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Solution

The fourth proportional to 481,470.15, 664,420.62 and 266,605.59 is: 367,911.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,470.15 : 664,420.62 = 266,605.59 : x
  2. Step 2: Convert to fraction form
    481,470.15/664,420.62 = 266,605.59/x
  3. Step 3: Cross multiply
    481,470.15x = 664,420.62 × 266,605.59
  4. Step 4: Simplify right side
    481,470.15x = 177,138,251,403.27
  5. Step 5: Solve for x
    x = 177,138,251,403.27/481,470.15
  6. Step 6: Final answer
    x = 367,911.18

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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.