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Finding the Fourth Proportional to 300,732.46, 415,010.78 and 164,771.54

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Solution

The fourth proportional to 300,732.46, 415,010.78 and 164,771.54 is: 227,384.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,732.46 : 415,010.78 = 164,771.54 : x
  2. Step 2: Convert to fraction form
    300,732.46/415,010.78 = 164,771.54/x
  3. Step 3: Cross multiply
    300,732.46x = 415,010.78 × 164,771.54
  4. Step 4: Simplify right side
    300,732.46x = 68,381,965,337.20
  5. Step 5: Solve for x
    x = 68,381,965,337.20/300,732.46
  6. Step 6: Final answer
    x = 227,384.72

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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.