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Finding the Fourth Proportional to 329,082.60, 493,623.90 and 79,764.60

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Solution

The fourth proportional to 329,082.60, 493,623.90 and 79,764.60 is: 119,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,082.60 : 493,623.90 = 79,764.60 : x
  2. Step 2: Convert to fraction form
    329,082.60/493,623.90 = 79,764.60/x
  3. Step 3: Cross multiply
    329,082.60x = 493,623.90 × 79,764.60
  4. Step 4: Simplify right side
    329,082.60x = 39,373,712,933.94
  5. Step 5: Solve for x
    x = 39,373,712,933.94/329,082.60
  6. Step 6: Final answer
    x = 119,646.90

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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.