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Finding the Fourth Proportional to 577,949.54, 867,266.78 and 321,996.33

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Solution

The fourth proportional to 577,949.54, 867,266.78 and 321,996.33 is: 483,185.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,949.54 : 867,266.78 = 321,996.33 : x
  2. Step 2: Convert to fraction form
    577,949.54/867,266.78 = 321,996.33/x
  3. Step 3: Cross multiply
    577,949.54x = 867,266.78 × 321,996.33
  4. Step 4: Simplify right side
    577,949.54x = 279,256,718,680.94
  5. Step 5: Solve for x
    x = 279,256,718,680.94/577,949.54
  6. Step 6: Final answer
    x = 483,185.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.