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Finding the Fourth Proportional to 361,184.67, 498,438.54 and 217,917.06

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Solution

The fourth proportional to 361,184.67, 498,438.54 and 217,917.06 is: 300,727.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,184.67 : 498,438.54 = 217,917.06 : x
  2. Step 2: Convert to fraction form
    361,184.67/498,438.54 = 217,917.06/x
  3. Step 3: Cross multiply
    361,184.67x = 498,438.54 × 217,917.06
  4. Step 4: Simplify right side
    361,184.67x = 108,618,261,227.49
  5. Step 5: Solve for x
    x = 108,618,261,227.49/361,184.67
  6. Step 6: Final answer
    x = 300,727.77

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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.