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Finding the Fourth Proportional to 579,845.12, 869,559.21 and 200,662.88

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Solution

The fourth proportional to 579,845.12, 869,559.21 and 200,662.88 is: 300,922.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,845.12 : 869,559.21 = 200,662.88 : x
  2. Step 2: Convert to fraction form
    579,845.12/869,559.21 = 200,662.88/x
  3. Step 3: Cross multiply
    579,845.12x = 869,559.21 × 200,662.88
  4. Step 4: Simplify right side
    579,845.12x = 174,488,251,061.33
  5. Step 5: Solve for x
    x = 174,488,251,061.33/579,845.12
  6. Step 6: Final answer
    x = 300,922.17

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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.