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Finding the Fourth Proportional to 329,831.70, 494,747.55 and 163,943.70

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Solution

The fourth proportional to 329,831.70, 494,747.55 and 163,943.70 is: 245,915.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,831.70 : 494,747.55 = 163,943.70 : x
  2. Step 2: Convert to fraction form
    329,831.70/494,747.55 = 163,943.70/x
  3. Step 3: Cross multiply
    329,831.70x = 494,747.55 × 163,943.70
  4. Step 4: Simplify right side
    329,831.70x = 81,110,743,912.94
  5. Step 5: Solve for x
    x = 81,110,743,912.94/329,831.70
  6. Step 6: Final answer
    x = 245,915.55

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Similar ratio
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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.