Home / 919,608.70-1,379,396.94-413,811.69

Finding the Fourth Proportional to 919,608.70, 1,379,396.94 and 413,811.69

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Solution

The fourth proportional to 919,608.70, 1,379,396.94 and 413,811.69 is: 620,710.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,608.70 : 1,379,396.94 = 413,811.69 : x
  2. Step 2: Convert to fraction form
    919,608.70/1,379,396.94 = 413,811.69/x
  3. Step 3: Cross multiply
    919,608.70x = 1,379,396.94 × 413,811.69
  4. Step 4: Simplify right side
    919,608.70x = 570,810,578,922.23
  5. Step 5: Solve for x
    x = 570,810,578,922.23/919,608.70
  6. Step 6: Final answer
    x = 620,710.29

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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.