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Finding the Fourth Proportional to 300,960.96, 414,986.00 and 191,919.57

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Solution

The fourth proportional to 300,960.96, 414,986.00 and 191,919.57 is: 264,632.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,960.96 : 414,986.00 = 191,919.57 : x
  2. Step 2: Convert to fraction form
    300,960.96/414,986.00 = 191,919.57/x
  3. Step 3: Cross multiply
    300,960.96x = 414,986.00 × 191,919.57
  4. Step 4: Simplify right side
    300,960.96x = 79,643,933,239.77
  5. Step 5: Solve for x
    x = 79,643,933,239.77/300,960.96
  6. Step 6: Final answer
    x = 264,632.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.