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Finding the Fourth Proportional to 300,318.90, 414,422.22 and 164,325.72

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Solution

The fourth proportional to 300,318.90, 414,422.22 and 164,325.72 is: 226,759.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,318.90 : 414,422.22 = 164,325.72 : x
  2. Step 2: Convert to fraction form
    300,318.90/414,422.22 = 164,325.72/x
  3. Step 3: Cross multiply
    300,318.90x = 414,422.22 × 164,325.72
  4. Step 4: Simplify right side
    300,318.90x = 68,100,229,685.50
  5. Step 5: Solve for x
    x = 68,100,229,685.50/300,318.90
  6. Step 6: Final answer
    x = 226,759.72

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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.