Home / 919,566.43-1,379,548.18-279,920.18

Finding the Fourth Proportional to 919,566.43, 1,379,548.18 and 279,920.18

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Solution

The fourth proportional to 919,566.43, 1,379,548.18 and 279,920.18 is: 419,940.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,566.43 : 1,379,548.18 = 279,920.18 : x
  2. Step 2: Convert to fraction form
    919,566.43/1,379,548.18 = 279,920.18/x
  3. Step 3: Cross multiply
    919,566.43x = 1,379,548.18 × 279,920.18
  4. Step 4: Simplify right side
    919,566.43x = 386,163,373,464.67
  5. Step 5: Solve for x
    x = 386,163,373,464.67/919,566.43
  6. Step 6: Final answer
    x = 419,940.71

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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.