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Finding the Fourth Proportional to 629,890.80, 944,843.40 and 156,577.20

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Solution

The fourth proportional to 629,890.80, 944,843.40 and 156,577.20 is: 234,867.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,890.80 : 944,843.40 = 156,577.20 : x
  2. Step 2: Convert to fraction form
    629,890.80/944,843.40 = 156,577.20/x
  3. Step 3: Cross multiply
    629,890.80x = 944,843.40 × 156,577.20
  4. Step 4: Simplify right side
    629,890.80x = 147,940,934,010.48
  5. Step 5: Solve for x
    x = 147,940,934,010.48/629,890.80
  6. Step 6: Final answer
    x = 234,867.59

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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.