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Finding the Fourth Proportional to 397,183.74, 548,117.22 and 215,896.08

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Solution

The fourth proportional to 397,183.74, 548,117.22 and 215,896.08 is: 297,938.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,183.74 : 548,117.22 = 215,896.08 : x
  2. Step 2: Convert to fraction form
    397,183.74/548,117.22 = 215,896.08/x
  3. Step 3: Cross multiply
    397,183.74x = 548,117.22 × 215,896.08
  4. Step 4: Simplify right side
    397,183.74x = 118,336,359,178.50
  5. Step 5: Solve for x
    x = 118,336,359,178.50/397,183.74
  6. Step 6: Final answer
    x = 297,938.58

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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.