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Finding the Fourth Proportional to 397,362.87, 596,064.90 and 131,144.14

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Solution

The fourth proportional to 397,362.87, 596,064.90 and 131,144.14 is: 196,723.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,362.87 : 596,064.90 = 131,144.14 : x
  2. Step 2: Convert to fraction form
    397,362.87/596,064.90 = 131,144.14/x
  3. Step 3: Cross multiply
    397,362.87x = 596,064.90 × 131,144.14
  4. Step 4: Simplify right side
    397,362.87x = 78,170,418,694.69
  5. Step 5: Solve for x
    x = 78,170,418,694.69/397,362.87
  6. Step 6: Final answer
    x = 196,723.01

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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.