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Finding the Fourth Proportional to 481,393.32, 664,329.78 and 277,331.64

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Solution

The fourth proportional to 481,393.32, 664,329.78 and 277,331.64 is: 382,721.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,393.32 : 664,329.78 = 277,331.64 : x
  2. Step 2: Convert to fraction form
    481,393.32/664,329.78 = 277,331.64/x
  3. Step 3: Cross multiply
    481,393.32x = 664,329.78 × 277,331.64
  4. Step 4: Simplify right side
    481,393.32x = 184,239,667,388.24
  5. Step 5: Solve for x
    x = 184,239,667,388.24/481,393.32
  6. Step 6: Final answer
    x = 382,721.69

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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.