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Finding the Fourth Proportional to 405,986.94, 560,314.32 and 244,928.97

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Solution

The fourth proportional to 405,986.94, 560,314.32 and 244,928.97 is: 338,033.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,986.94 : 560,314.32 = 244,928.97 : x
  2. Step 2: Convert to fraction form
    405,986.94/560,314.32 = 244,928.97/x
  3. Step 3: Cross multiply
    405,986.94x = 560,314.32 × 244,928.97
  4. Step 4: Simplify right side
    405,986.94x = 137,237,209,273.85
  5. Step 5: Solve for x
    x = 137,237,209,273.85/405,986.94
  6. Step 6: Final answer
    x = 338,033.56

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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.