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Finding the Fourth Proportional to 392,706.40, 541,778.88 and 227,103.76

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Solution

The fourth proportional to 392,706.40, 541,778.88 and 227,103.76 is: 313,313.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,706.40 : 541,778.88 = 227,103.76 : x
  2. Step 2: Convert to fraction form
    392,706.40/541,778.88 = 227,103.76/x
  3. Step 3: Cross multiply
    392,706.40x = 541,778.88 × 227,103.76
  4. Step 4: Simplify right side
    392,706.40x = 123,040,020,736.59
  5. Step 5: Solve for x
    x = 123,040,020,736.59/392,706.40
  6. Step 6: Final answer
    x = 313,313.00

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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.