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Finding the Fourth Proportional to 454,845.70, 682,268.55 and 277,698.70

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Solution

The fourth proportional to 454,845.70, 682,268.55 and 277,698.70 is: 416,548.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,845.70 : 682,268.55 = 277,698.70 : x
  2. Step 2: Convert to fraction form
    454,845.70/682,268.55 = 277,698.70/x
  3. Step 3: Cross multiply
    454,845.70x = 682,268.55 × 277,698.70
  4. Step 4: Simplify right side
    454,845.70x = 189,465,089,385.89
  5. Step 5: Solve for x
    x = 189,465,089,385.89/454,845.70
  6. Step 6: Final answer
    x = 416,548.05

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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.