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Finding the Fourth Proportional to 303,524.20, 455,561.70 and 153,868.60

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Solution

The fourth proportional to 303,524.20, 455,561.70 and 153,868.60 is: 230,942.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,524.20 : 455,561.70 = 153,868.60 : x
  2. Step 2: Convert to fraction form
    303,524.20/455,561.70 = 153,868.60/x
  3. Step 3: Cross multiply
    303,524.20x = 455,561.70 × 153,868.60
  4. Step 4: Simplify right side
    303,524.20x = 70,096,640,992.62
  5. Step 5: Solve for x
    x = 70,096,640,992.62/303,524.20
  6. Step 6: Final answer
    x = 230,942.51

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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.