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Finding the Fourth Proportional to 494,361.88, 682,292.22 and 313,090.70

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Solution

The fourth proportional to 494,361.88, 682,292.22 and 313,090.70 is: 432,111.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,361.88 : 682,292.22 = 313,090.70 : x
  2. Step 2: Convert to fraction form
    494,361.88/682,292.22 = 313,090.70/x
  3. Step 3: Cross multiply
    494,361.88x = 682,292.22 × 313,090.70
  4. Step 4: Simplify right side
    494,361.88x = 213,619,348,764.35
  5. Step 5: Solve for x
    x = 213,619,348,764.35/494,361.88
  6. Step 6: Final answer
    x = 432,111.29

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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.