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Finding the Fourth Proportional to 469,414.20, 647,790.24 and 254,553.60

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Solution

The fourth proportional to 469,414.20, 647,790.24 and 254,553.60 is: 351,283.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,414.20 : 647,790.24 = 254,553.60 : x
  2. Step 2: Convert to fraction form
    469,414.20/647,790.24 = 254,553.60/x
  3. Step 3: Cross multiply
    469,414.20x = 647,790.24 × 254,553.60
  4. Step 4: Simplify right side
    469,414.20x = 164,897,337,636.86
  5. Step 5: Solve for x
    x = 164,897,337,636.86/469,414.20
  6. Step 6: Final answer
    x = 351,283.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.