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Finding the Fourth Proportional to 619,744.32, 929,620.58 and 170,512.65

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Solution

The fourth proportional to 619,744.32, 929,620.58 and 170,512.65 is: 255,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,744.32 : 929,620.58 = 170,512.65 : x
  2. Step 2: Convert to fraction form
    619,744.32/929,620.58 = 170,512.65/x
  3. Step 3: Cross multiply
    619,744.32x = 929,620.58 × 170,512.65
  4. Step 4: Simplify right side
    619,744.32x = 158,512,067,737.77
  5. Step 5: Solve for x
    x = 158,512,067,737.77/619,744.32
  6. Step 6: Final answer
    x = 255,770.10

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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.