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Finding the Fourth Proportional to 262,674.80, 394,012.20 and 104,927.60

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Solution

The fourth proportional to 262,674.80, 394,012.20 and 104,927.60 is: 157,391.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,674.80 : 394,012.20 = 104,927.60 : x
  2. Step 2: Convert to fraction form
    262,674.80/394,012.20 = 104,927.60/x
  3. Step 3: Cross multiply
    262,674.80x = 394,012.20 × 104,927.60
  4. Step 4: Simplify right side
    262,674.80x = 41,342,754,516.72
  5. Step 5: Solve for x
    x = 41,342,754,516.72/262,674.80
  6. Step 6: Final answer
    x = 157,391.40

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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.