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Finding the Fourth Proportional to 445,604.72, 668,446.48 and 125,759.44

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Solution

The fourth proportional to 445,604.72, 668,446.48 and 125,759.44 is: 188,650.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,604.72 : 668,446.48 = 125,759.44 : x
  2. Step 2: Convert to fraction form
    445,604.72/668,446.48 = 125,759.44/x
  3. Step 3: Cross multiply
    445,604.72x = 668,446.48 × 125,759.44
  4. Step 4: Simplify right side
    445,604.72x = 84,063,454,994.77
  5. Step 5: Solve for x
    x = 84,063,454,994.77/445,604.72
  6. Step 6: Final answer
    x = 188,650.28

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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.