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Finding the Fourth Proportional to 323,546.80, 485,320.20 and 295,553.20

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Solution

The fourth proportional to 323,546.80, 485,320.20 and 295,553.20 is: 443,329.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,546.80 : 485,320.20 = 295,553.20 : x
  2. Step 2: Convert to fraction form
    323,546.80/485,320.20 = 295,553.20/x
  3. Step 3: Cross multiply
    323,546.80x = 485,320.20 × 295,553.20
  4. Step 4: Simplify right side
    323,546.80x = 143,437,938,134.64
  5. Step 5: Solve for x
    x = 143,437,938,134.64/323,546.80
  6. Step 6: Final answer
    x = 443,329.80

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1.5x scale

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.