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Finding the Fourth Proportional to 329,077.46, 493,616.20 and 79,759.46

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Solution

The fourth proportional to 329,077.46, 493,616.20 and 79,759.46 is: 119,639.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,077.46 : 493,616.20 = 79,759.46 : x
  2. Step 2: Convert to fraction form
    329,077.46/493,616.20 = 79,759.46/x
  3. Step 3: Cross multiply
    329,077.46x = 493,616.20 × 79,759.46
  4. Step 4: Simplify right side
    329,077.46x = 39,370,562,593.89
  5. Step 5: Solve for x
    x = 39,370,562,593.89/329,077.46
  6. Step 6: Final answer
    x = 119,639.19

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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.