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Finding the Fourth Proportional to 330,449.48, 455,912.60 and 192,596.95

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Solution

The fourth proportional to 330,449.48, 455,912.60 and 192,596.95 is: 265,721.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,449.48 : 455,912.60 = 192,596.95 : x
  2. Step 2: Convert to fraction form
    330,449.48/455,912.60 = 192,596.95/x
  3. Step 3: Cross multiply
    330,449.48x = 455,912.60 × 192,596.95
  4. Step 4: Simplify right side
    330,449.48x = 87,807,374,846.04
  5. Step 5: Solve for x
    x = 87,807,374,846.04/330,449.48
  6. Step 6: Final answer
    x = 265,721.02

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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.