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Finding the Fourth Proportional to 338,361.72, 466,727.94 and 217,660.36

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Solution

The fourth proportional to 338,361.72, 466,727.94 and 217,660.36 is: 300,235.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,361.72 : 466,727.94 = 217,660.36 : x
  2. Step 2: Convert to fraction form
    338,361.72/466,727.94 = 217,660.36/x
  3. Step 3: Cross multiply
    338,361.72x = 466,727.94 × 217,660.36
  4. Step 4: Simplify right side
    338,361.72x = 101,588,171,442.46
  5. Step 5: Solve for x
    x = 101,588,171,442.46/338,361.72
  6. Step 6: Final answer
    x = 300,235.42

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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.