Home / 394,278.17-543,914.21-258,253.25

Finding the Fourth Proportional to 394,278.17, 543,914.21 and 258,253.25

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Solution

The fourth proportional to 394,278.17, 543,914.21 and 258,253.25 is: 356,265.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,278.17 : 543,914.21 = 258,253.25 : x
  2. Step 2: Convert to fraction form
    394,278.17/543,914.21 = 258,253.25/x
  3. Step 3: Cross multiply
    394,278.17x = 543,914.21 × 258,253.25
  4. Step 4: Simplify right side
    394,278.17x = 140,467,611,162.42
  5. Step 5: Solve for x
    x = 140,467,611,162.42/394,278.17
  6. Step 6: Final answer
    x = 356,265.25

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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.