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Finding the Fourth Proportional to 300,391.74, 414,538.56 and 173,064.60

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Solution

The fourth proportional to 300,391.74, 414,538.56 and 173,064.60 is: 238,827.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,391.74 : 414,538.56 = 173,064.60 : x
  2. Step 2: Convert to fraction form
    300,391.74/414,538.56 = 173,064.60/x
  3. Step 3: Cross multiply
    300,391.74x = 414,538.56 × 173,064.60
  4. Step 4: Simplify right side
    300,391.74x = 71,741,950,070.98
  5. Step 5: Solve for x
    x = 71,741,950,070.98/300,391.74
  6. Step 6: Final answer
    x = 238,827.97

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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.