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Finding the Fourth Proportional to 547,663.22, 819,496.55 and 323,131.22

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Solution

The fourth proportional to 547,663.22, 819,496.55 and 323,131.22 is: 483,517.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,663.22 : 819,496.55 = 323,131.22 : x
  2. Step 2: Convert to fraction form
    547,663.22/819,496.55 = 323,131.22/x
  3. Step 3: Cross multiply
    547,663.22x = 819,496.55 × 323,131.22
  4. Step 4: Simplify right side
    547,663.22x = 264,804,914,274.15
  5. Step 5: Solve for x
    x = 264,804,914,274.15/547,663.22
  6. Step 6: Final answer
    x = 483,517.80

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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.