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Finding the Fourth Proportional to 397,219.93, 548,174.85 and 242,180.17

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Solution

The fourth proportional to 397,219.93, 548,174.85 and 242,180.17 is: 334,215.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,219.93 : 548,174.85 = 242,180.17 : x
  2. Step 2: Convert to fraction form
    397,219.93/548,174.85 = 242,180.17/x
  3. Step 3: Cross multiply
    397,219.93x = 548,174.85 × 242,180.17
  4. Step 4: Simplify right side
    397,219.93x = 132,757,078,362.73
  5. Step 5: Solve for x
    x = 132,757,078,362.73/397,219.93
  6. Step 6: Final answer
    x = 334,215.55

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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.