Home / 919,773.54-1,379,867.94-280,134.54

Finding the Fourth Proportional to 919,773.54, 1,379,867.94 and 280,134.54

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Solution

The fourth proportional to 919,773.54, 1,379,867.94 and 280,134.54 is: 420,265.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,773.54 : 1,379,867.94 = 280,134.54 : x
  2. Step 2: Convert to fraction form
    919,773.54/1,379,867.94 = 280,134.54/x
  3. Step 3: Cross multiply
    919,773.54x = 1,379,867.94 × 280,134.54
  4. Step 4: Simplify right side
    919,773.54x = 386,548,670,632.65
  5. Step 5: Solve for x
    x = 386,548,670,632.65/919,773.54
  6. Step 6: Final answer
    x = 420,265.05

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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.