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Finding the Fourth Proportional to 345,858.95, 477,288.05 and 192,906.86

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Solution

The fourth proportional to 345,858.95, 477,288.05 and 192,906.86 is: 266,212.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,858.95 : 477,288.05 = 192,906.86 : x
  2. Step 2: Convert to fraction form
    345,858.95/477,288.05 = 192,906.86/x
  3. Step 3: Cross multiply
    345,858.95x = 477,288.05 × 192,906.86
  4. Step 4: Simplify right side
    345,858.95x = 92,072,135,690.05
  5. Step 5: Solve for x
    x = 92,072,135,690.05/345,858.95
  6. Step 6: Final answer
    x = 266,212.96

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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.