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Finding the Fourth Proportional to 361,215.95, 541,488.73 and 133,385.73

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Solution

The fourth proportional to 361,215.95, 541,488.73 and 133,385.73 is: 199,954.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,215.95 : 541,488.73 = 133,385.73 : x
  2. Step 2: Convert to fraction form
    361,215.95/541,488.73 = 133,385.73/x
  3. Step 3: Cross multiply
    361,215.95x = 541,488.73 × 133,385.73
  4. Step 4: Simplify right side
    361,215.95x = 72,226,866,163.45
  5. Step 5: Solve for x
    x = 72,226,866,163.45/361,215.95
  6. Step 6: Final answer
    x = 199,954.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.