Home / 919,859.50-1,379,801.67-288,773.38

Finding the Fourth Proportional to 919,859.50, 1,379,801.67 and 288,773.38

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Solution

The fourth proportional to 919,859.50, 1,379,801.67 and 288,773.38 is: 433,163.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,859.50 : 1,379,801.67 = 288,773.38 : x
  2. Step 2: Convert to fraction form
    919,859.50/1,379,801.67 = 288,773.38/x
  3. Step 3: Cross multiply
    919,859.50x = 1,379,801.67 × 288,773.38
  4. Step 4: Simplify right side
    919,859.50x = 398,449,991,975.55
  5. Step 5: Solve for x
    x = 398,449,991,975.55/919,859.50
  6. Step 6: Final answer
    x = 433,163.97

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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.