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Finding the Fourth Proportional to 872,960.92, 1,309,761.22 and 367,649.08

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Solution

The fourth proportional to 872,960.92, 1,309,761.22 and 367,649.08 is: 551,608.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,960.92 : 1,309,761.22 = 367,649.08 : x
  2. Step 2: Convert to fraction form
    872,960.92/1,309,761.22 = 367,649.08/x
  3. Step 3: Cross multiply
    872,960.92x = 1,309,761.22 × 367,649.08
  4. Step 4: Simplify right side
    872,960.92x = 481,532,507,552.68
  5. Step 5: Solve for x
    x = 481,532,507,552.68/872,960.92
  6. Step 6: Final answer
    x = 551,608.32

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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.