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Finding the Fourth Proportional to 329,082.13, 493,623.20 and 79,764.13

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Solution

The fourth proportional to 329,082.13, 493,623.20 and 79,764.13 is: 119,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,082.13 : 493,623.20 = 79,764.13 : x
  2. Step 2: Convert to fraction form
    329,082.13/493,623.20 = 79,764.13/x
  3. Step 3: Cross multiply
    329,082.13x = 493,623.20 × 79,764.13
  4. Step 4: Simplify right side
    329,082.13x = 39,373,425,095.82
  5. Step 5: Solve for x
    x = 39,373,425,095.82/329,082.13
  6. Step 6: Final answer
    x = 119,646.20

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Similar ratio
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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.