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Finding the Fourth Proportional to 300,790.75, 415,091.25 and 179,937.13

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Solution

The fourth proportional to 300,790.75, 415,091.25 and 179,937.13 is: 248,313.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,790.75 : 415,091.25 = 179,937.13 : x
  2. Step 2: Convert to fraction form
    300,790.75/415,091.25 = 179,937.13/x
  3. Step 3: Cross multiply
    300,790.75x = 415,091.25 × 179,937.13
  4. Step 4: Simplify right side
    300,790.75x = 74,690,328,213.11
  5. Step 5: Solve for x
    x = 74,690,328,213.11/300,790.75
  6. Step 6: Final answer
    x = 248,313.25

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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.