Home / 919,824.89-1,379,737.71-413,794.80

Finding the Fourth Proportional to 919,824.89, 1,379,737.71 and 413,794.80

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Solution

The fourth proportional to 919,824.89, 1,379,737.71 and 413,794.80 is: 620,692.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,824.89 : 1,379,737.71 = 413,794.80 : x
  2. Step 2: Convert to fraction form
    919,824.89/1,379,737.71 = 413,794.80/x
  3. Step 3: Cross multiply
    919,824.89x = 1,379,737.71 × 413,794.80
  4. Step 4: Simplify right side
    919,824.89x = 570,928,289,761.91
  5. Step 5: Solve for x
    x = 570,928,289,761.91/919,824.89
  6. Step 6: Final answer
    x = 620,692.37

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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.