Home / 394,280.17-543,916.96-258,255.25

Finding the Fourth Proportional to 394,280.17, 543,916.96 and 258,255.25

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Solution

The fourth proportional to 394,280.17, 543,916.96 and 258,255.25 is: 356,268.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,280.17 : 543,916.96 = 258,255.25 : x
  2. Step 2: Convert to fraction form
    394,280.17/543,916.96 = 258,255.25/x
  3. Step 3: Cross multiply
    394,280.17x = 543,916.96 × 258,255.25
  4. Step 4: Simplify right side
    394,280.17x = 140,469,410,484.04
  5. Step 5: Solve for x
    x = 140,469,410,484.04/394,280.17
  6. Step 6: Final answer
    x = 356,268.01

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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.