Home / 279,621.86-385,755.35-188,944.75

Finding the Fourth Proportional to 279,621.86, 385,755.35 and 188,944.75

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Solution

The fourth proportional to 279,621.86, 385,755.35 and 188,944.75 is: 260,660.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,621.86 : 385,755.35 = 188,944.75 : x
  2. Step 2: Convert to fraction form
    279,621.86/385,755.35 = 188,944.75/x
  3. Step 3: Cross multiply
    279,621.86x = 385,755.35 × 188,944.75
  4. Step 4: Simplify right side
    279,621.86x = 72,886,447,704.38
  5. Step 5: Solve for x
    x = 72,886,447,704.38/279,621.86
  6. Step 6: Final answer
    x = 260,660.77

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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.