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Finding the Fourth Proportional to 329,074.18, 493,611.28 and 79,756.18

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Solution

The fourth proportional to 329,074.18, 493,611.28 and 79,756.18 is: 119,634.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,074.18 : 493,611.28 = 79,756.18 : x
  2. Step 2: Convert to fraction form
    329,074.18/493,611.28 = 79,756.18/x
  3. Step 3: Cross multiply
    329,074.18x = 493,611.28 × 79,756.18
  4. Step 4: Simplify right side
    329,074.18x = 39,368,548,664.29
  5. Step 5: Solve for x
    x = 39,368,548,664.29/329,074.18
  6. Step 6: Final answer
    x = 119,634.27

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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.