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Finding the Fourth Proportional to 320,815.70, 481,569.15 and 180,847.70

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Solution

The fourth proportional to 320,815.70, 481,569.15 and 180,847.70 is: 271,466.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,815.70 : 481,569.15 = 180,847.70 : x
  2. Step 2: Convert to fraction form
    320,815.70/481,569.15 = 180,847.70/x
  3. Step 3: Cross multiply
    320,815.70x = 481,569.15 × 180,847.70
  4. Step 4: Simplify right side
    320,815.70x = 87,090,673,168.46
  5. Step 5: Solve for x
    x = 87,090,673,168.46/320,815.70
  6. Step 6: Final answer
    x = 271,466.37

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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.