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Finding the Fourth Proportional to 324,085.60, 447,263.59 and 178,920.23

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Solution

The fourth proportional to 324,085.60, 447,263.59 and 178,920.23 is: 246,923.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,085.60 : 447,263.59 = 178,920.23 : x
  2. Step 2: Convert to fraction form
    324,085.60/447,263.59 = 178,920.23/x
  3. Step 3: Cross multiply
    324,085.60x = 447,263.59 × 178,920.23
  4. Step 4: Simplify right side
    324,085.60x = 80,024,504,393.43
  5. Step 5: Solve for x
    x = 80,024,504,393.43/324,085.60
  6. Step 6: Final answer
    x = 246,923.97

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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.