Home / 671,022.75-925,706.27-398,936.26

Finding the Fourth Proportional to 671,022.75, 925,706.27 and 398,936.26

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Solution

The fourth proportional to 671,022.75, 925,706.27 and 398,936.26 is: 550,350.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,022.75 : 925,706.27 = 398,936.26 : x
  2. Step 2: Convert to fraction form
    671,022.75/925,706.27 = 398,936.26/x
  3. Step 3: Cross multiply
    671,022.75x = 925,706.27 × 398,936.26
  4. Step 4: Simplify right side
    671,022.75x = 369,297,795,217.67
  5. Step 5: Solve for x
    x = 369,297,795,217.67/671,022.75
  6. Step 6: Final answer
    x = 550,350.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.