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Finding the Fourth Proportional to 342,468.20, 472,399.47 and 226,182.37

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Solution

The fourth proportional to 342,468.20, 472,399.47 and 226,182.37 is: 311,995.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,468.20 : 472,399.47 = 226,182.37 : x
  2. Step 2: Convert to fraction form
    342,468.20/472,399.47 = 226,182.37/x
  3. Step 3: Cross multiply
    342,468.20x = 472,399.47 × 226,182.37
  4. Step 4: Simplify right side
    342,468.20x = 106,848,431,711.34
  5. Step 5: Solve for x
    x = 106,848,431,711.34/342,468.20
  6. Step 6: Final answer
    x = 311,995.19

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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.