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Finding the Fourth Proportional to 302,469.40, 453,185.70 and 197,234.20

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Solution

The fourth proportional to 302,469.40, 453,185.70 and 197,234.20 is: 295,513.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,469.40 : 453,185.70 = 197,234.20 : x
  2. Step 2: Convert to fraction form
    302,469.40/453,185.70 = 197,234.20/x
  3. Step 3: Cross multiply
    302,469.40x = 453,185.70 × 197,234.20
  4. Step 4: Simplify right side
    302,469.40x = 89,383,718,990.94
  5. Step 5: Solve for x
    x = 89,383,718,990.94/302,469.40
  6. Step 6: Final answer
    x = 295,513.26

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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.