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Finding the Fourth Proportional to 392,293.98, 588,440.97 and 111,803.94

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Solution

The fourth proportional to 392,293.98, 588,440.97 and 111,803.94 is: 167,705.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,293.98 : 588,440.97 = 111,803.94 : x
  2. Step 2: Convert to fraction form
    392,293.98/588,440.97 = 111,803.94/x
  3. Step 3: Cross multiply
    392,293.98x = 588,440.97 × 111,803.94
  4. Step 4: Simplify right side
    392,293.98x = 65,790,018,903.42
  5. Step 5: Solve for x
    x = 65,790,018,903.42/392,293.98
  6. Step 6: Final answer
    x = 167,705.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.