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Finding the Fourth Proportional to 622,113.75, 858,518.97 and 350,185.93

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Solution

The fourth proportional to 622,113.75, 858,518.97 and 350,185.93 is: 483,257.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,113.75 : 858,518.97 = 350,185.93 : x
  2. Step 2: Convert to fraction form
    622,113.75/858,518.97 = 350,185.93/x
  3. Step 3: Cross multiply
    622,113.75x = 858,518.97 × 350,185.93
  4. Step 4: Simplify right side
    622,113.75x = 300,641,263,932.09
  5. Step 5: Solve for x
    x = 300,641,263,932.09/622,113.75
  6. Step 6: Final answer
    x = 483,257.71

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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.