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Finding the Fourth Proportional to 262,504.80, 393,951.60 and 173,728.80

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Solution

The fourth proportional to 262,504.80, 393,951.60 and 173,728.80 is: 260,721.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,504.80 : 393,951.60 = 173,728.80 : x
  2. Step 2: Convert to fraction form
    262,504.80/393,951.60 = 173,728.80/x
  3. Step 3: Cross multiply
    262,504.80x = 393,951.60 × 173,728.80
  4. Step 4: Simplify right side
    262,504.80x = 68,440,738,726.08
  5. Step 5: Solve for x
    x = 68,440,738,726.08/262,504.80
  6. Step 6: Final answer
    x = 260,721.86

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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.