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Finding the Fourth Proportional to 481,359.84, 664,273.08 and 290,478.48

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Solution

The fourth proportional to 481,359.84, 664,273.08 and 290,478.48 is: 400,858.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,359.84 : 664,273.08 = 290,478.48 : x
  2. Step 2: Convert to fraction form
    481,359.84/664,273.08 = 290,478.48/x
  3. Step 3: Cross multiply
    481,359.84x = 664,273.08 × 290,478.48
  4. Step 4: Simplify right side
    481,359.84x = 192,957,034,583.32
  5. Step 5: Solve for x
    x = 192,957,034,583.32/481,359.84
  6. Step 6: Final answer
    x = 400,858.19

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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.