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Finding the Fourth Proportional to 547,660.22, 819,492.05 and 323,128.22

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Solution

The fourth proportional to 547,660.22, 819,492.05 and 323,128.22 is: 483,513.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,660.22 : 819,492.05 = 323,128.22 : x
  2. Step 2: Convert to fraction form
    547,660.22/819,492.05 = 323,128.22/x
  3. Step 3: Cross multiply
    547,660.22x = 819,492.05 × 323,128.22
  4. Step 4: Simplify right side
    547,660.22x = 264,801,004,131.01
  5. Step 5: Solve for x
    x = 264,801,004,131.01/547,660.22
  6. Step 6: Final answer
    x = 483,513.31

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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.