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Finding the Fourth Proportional to 392,292.33, 541,419.99 and 217,902.32

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Solution

The fourth proportional to 392,292.33, 541,419.99 and 217,902.32 is: 300,736.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,292.33 : 541,419.99 = 217,902.32 : x
  2. Step 2: Convert to fraction form
    392,292.33/541,419.99 = 217,902.32/x
  3. Step 3: Cross multiply
    392,292.33x = 541,419.99 × 217,902.32
  4. Step 4: Simplify right side
    392,292.33x = 117,976,671,915.38
  5. Step 5: Solve for x
    x = 117,976,671,915.38/392,292.33
  6. Step 6: Final answer
    x = 300,736.63

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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.