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Finding the Fourth Proportional to 330,763.96, 496,309.95 and 131,079.93

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Solution

The fourth proportional to 330,763.96, 496,309.95 and 131,079.93 is: 196,684.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,763.96 : 496,309.95 = 131,079.93 : x
  2. Step 2: Convert to fraction form
    330,763.96/496,309.95 = 131,079.93/x
  3. Step 3: Cross multiply
    330,763.96x = 496,309.95 × 131,079.93
  4. Step 4: Simplify right side
    330,763.96x = 65,056,273,504.30
  5. Step 5: Solve for x
    x = 65,056,273,504.30/330,763.96
  6. Step 6: Final answer
    x = 196,684.89

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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.