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Finding the Fourth Proportional to 263,219.60, 394,683.60 and 113,434.40

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Solution

The fourth proportional to 263,219.60, 394,683.60 and 113,434.40 is: 170,088.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,219.60 : 394,683.60 = 113,434.40 : x
  2. Step 2: Convert to fraction form
    263,219.60/394,683.60 = 113,434.40/x
  3. Step 3: Cross multiply
    263,219.60x = 394,683.60 × 113,434.40
  4. Step 4: Simplify right side
    263,219.60x = 44,770,697,355.84
  5. Step 5: Solve for x
    x = 44,770,697,355.84/263,219.60
  6. Step 6: Final answer
    x = 170,088.77

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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.