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Finding the Fourth Proportional to 454,969.94, 682,535.12 and 155,380.30

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Solution

The fourth proportional to 454,969.94, 682,535.12 and 155,380.30 is: 233,097.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,969.94 : 682,535.12 = 155,380.30 : x
  2. Step 2: Convert to fraction form
    454,969.94/682,535.12 = 155,380.30/x
  3. Step 3: Cross multiply
    454,969.94x = 682,535.12 × 155,380.30
  4. Step 4: Simplify right side
    454,969.94x = 106,052,511,706.14
  5. Step 5: Solve for x
    x = 106,052,511,706.14/454,969.94
  6. Step 6: Final answer
    x = 233,097.84

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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.