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Finding the Fourth Proportional to 547,661.59, 819,494.11 and 323,129.59

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Solution

The fourth proportional to 547,661.59, 819,494.11 and 323,129.59 is: 483,515.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,661.59 : 819,494.11 = 323,129.59 : x
  2. Step 2: Convert to fraction form
    547,661.59/819,494.11 = 323,129.59/x
  3. Step 3: Cross multiply
    547,661.59x = 819,494.11 × 323,129.59
  4. Step 4: Simplify right side
    547,661.59x = 264,802,795,771.72
  5. Step 5: Solve for x
    x = 264,802,795,771.72/547,661.59
  6. Step 6: Final answer
    x = 483,515.37

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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.