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Finding the Fourth Proportional to 392,604.20, 588,906.30 and 97,116.20

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Solution

The fourth proportional to 392,604.20, 588,906.30 and 97,116.20 is: 145,674.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,604.20 : 588,906.30 = 97,116.20 : x
  2. Step 2: Convert to fraction form
    392,604.20/588,906.30 = 97,116.20/x
  3. Step 3: Cross multiply
    392,604.20x = 588,906.30 × 97,116.20
  4. Step 4: Simplify right side
    392,604.20x = 57,192,342,012.06
  5. Step 5: Solve for x
    x = 57,192,342,012.06/392,604.20
  6. Step 6: Final answer
    x = 145,674.30

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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.