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Finding the Fourth Proportional to 533,555.88, 800,335.18 and 218,012.78

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Solution

The fourth proportional to 533,555.88, 800,335.18 and 218,012.78 is: 327,019.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,555.88 : 800,335.18 = 218,012.78 : x
  2. Step 2: Convert to fraction form
    533,555.88/800,335.18 = 218,012.78/x
  3. Step 3: Cross multiply
    533,555.88x = 800,335.18 × 218,012.78
  4. Step 4: Simplify right side
    533,555.88x = 174,483,297,523.60
  5. Step 5: Solve for x
    x = 174,483,297,523.60/533,555.88
  6. Step 6: Final answer
    x = 327,019.73

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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.