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Finding the Fourth Proportional to 300,381.15, 414,524.90 and 162,559.80

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Solution

The fourth proportional to 300,381.15, 414,524.90 and 162,559.80 is: 224,331.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,381.15 : 414,524.90 = 162,559.80 : x
  2. Step 2: Convert to fraction form
    300,381.15/414,524.90 = 162,559.80/x
  3. Step 3: Cross multiply
    300,381.15x = 414,524.90 × 162,559.80
  4. Step 4: Simplify right side
    300,381.15x = 67,385,085,245.42
  5. Step 5: Solve for x
    x = 67,385,085,245.42/300,381.15
  6. Step 6: Final answer
    x = 224,331.93

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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.