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Finding the Fourth Proportional to 494,443.80, 741,665.70 and 210,060.90

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Solution

The fourth proportional to 494,443.80, 741,665.70 and 210,060.90 is: 315,091.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,443.80 : 741,665.70 = 210,060.90 : x
  2. Step 2: Convert to fraction form
    494,443.80/741,665.70 = 210,060.90/x
  3. Step 3: Cross multiply
    494,443.80x = 741,665.70 × 210,060.90
  4. Step 4: Simplify right side
    494,443.80x = 155,794,964,441.13
  5. Step 5: Solve for x
    x = 155,794,964,441.13/494,443.80
  6. Step 6: Final answer
    x = 315,091.35

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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.