Home / 394,301.17-543,945.94-258,276.25

Finding the Fourth Proportional to 394,301.17, 543,945.94 and 258,276.25

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Solution

The fourth proportional to 394,301.17, 543,945.94 and 258,276.25 is: 356,296.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,301.17 : 543,945.94 = 258,276.25 : x
  2. Step 2: Convert to fraction form
    394,301.17/543,945.94 = 258,276.25/x
  3. Step 3: Cross multiply
    394,301.17x = 543,945.94 × 258,276.25
  4. Step 4: Simplify right side
    394,301.17x = 140,488,317,585.93
  5. Step 5: Solve for x
    x = 140,488,317,585.93/394,301.17
  6. Step 6: Final answer
    x = 356,296.98

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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.