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Finding the Fourth Proportional to 548,836.79, 757,358.15 and 303,804.97

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Solution

The fourth proportional to 548,836.79, 757,358.15 and 303,804.97 is: 419,230.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,836.79 : 757,358.15 = 303,804.97 : x
  2. Step 2: Convert to fraction form
    548,836.79/757,358.15 = 303,804.97/x
  3. Step 3: Cross multiply
    548,836.79x = 757,358.15 × 303,804.97
  4. Step 4: Simplify right side
    548,836.79x = 230,089,166,627.59
  5. Step 5: Solve for x
    x = 230,089,166,627.59/548,836.79
  6. Step 6: Final answer
    x = 419,230.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.