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Finding the Fourth Proportional to 330,082.74, 455,525.01 and 186,839.73

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Solution

The fourth proportional to 330,082.74, 455,525.01 and 186,839.73 is: 257,844.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,082.74 : 455,525.01 = 186,839.73 : x
  2. Step 2: Convert to fraction form
    330,082.74/455,525.01 = 186,839.73/x
  3. Step 3: Cross multiply
    330,082.74x = 455,525.01 × 186,839.73
  4. Step 4: Simplify right side
    330,082.74x = 85,110,169,876.65
  5. Step 5: Solve for x
    x = 85,110,169,876.65/330,082.74
  6. Step 6: Final answer
    x = 257,844.96

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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.