Home / 878,452.12-1,318,176.24-405,137.56

Finding the Fourth Proportional to 878,452.12, 1,318,176.24 and 405,137.56

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Solution

The fourth proportional to 878,452.12, 1,318,176.24 and 405,137.56 is: 607,936.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,452.12 : 1,318,176.24 = 405,137.56 : x
  2. Step 2: Convert to fraction form
    878,452.12/1,318,176.24 = 405,137.56/x
  3. Step 3: Cross multiply
    878,452.12x = 1,318,176.24 × 405,137.56
  4. Step 4: Simplify right side
    878,452.12x = 534,042,705,523.57
  5. Step 5: Solve for x
    x = 534,042,705,523.57/878,452.12
  6. Step 6: Final answer
    x = 607,936.04

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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.