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Finding the Fourth Proportional to 300,319.56, 414,533.25 and 173,079.90

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Solution

The fourth proportional to 300,319.56, 414,533.25 and 173,079.90 is: 238,903.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,319.56 : 414,533.25 = 173,079.90 : x
  2. Step 2: Convert to fraction form
    300,319.56/414,533.25 = 173,079.90/x
  3. Step 3: Cross multiply
    300,319.56x = 414,533.25 × 173,079.90
  4. Step 4: Simplify right side
    300,319.56x = 71,747,373,456.68
  5. Step 5: Solve for x
    x = 71,747,373,456.68/300,319.56
  6. Step 6: Final answer
    x = 238,903.43

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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.