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Finding the Fourth Proportional to 638,323.29, 957,517.74 and 165,012.75

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Solution

The fourth proportional to 638,323.29, 957,517.74 and 165,012.75 is: 247,527.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,323.29 : 957,517.74 = 165,012.75 : x
  2. Step 2: Convert to fraction form
    638,323.29/957,517.74 = 165,012.75/x
  3. Step 3: Cross multiply
    638,323.29x = 957,517.74 × 165,012.75
  4. Step 4: Simplify right side
    638,323.29x = 158,002,635,451.19
  5. Step 5: Solve for x
    x = 158,002,635,451.19/638,323.29
  6. Step 6: Final answer
    x = 247,527.61

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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.