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Finding the Fourth Proportional to 291,707.70, 437,561.55 and 197,229.30

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Solution

The fourth proportional to 291,707.70, 437,561.55 and 197,229.30 is: 295,843.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,707.70 : 437,561.55 = 197,229.30 : x
  2. Step 2: Convert to fraction form
    291,707.70/437,561.55 = 197,229.30/x
  3. Step 3: Cross multiply
    291,707.70x = 437,561.55 × 197,229.30
  4. Step 4: Simplify right side
    291,707.70x = 86,299,958,213.42
  5. Step 5: Solve for x
    x = 86,299,958,213.42/291,707.70
  6. Step 6: Final answer
    x = 295,843.95

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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.