Home / 543,581.19-815,436.63-262,896.75

Finding the Fourth Proportional to 543,581.19, 815,436.63 and 262,896.75

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Solution

The fourth proportional to 543,581.19, 815,436.63 and 262,896.75 is: 394,376.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,581.19 : 815,436.63 = 262,896.75 : x
  2. Step 2: Convert to fraction form
    543,581.19/815,436.63 = 262,896.75/x
  3. Step 3: Cross multiply
    543,581.19x = 815,436.63 × 262,896.75
  4. Step 4: Simplify right side
    543,581.19x = 214,375,639,857.95
  5. Step 5: Solve for x
    x = 214,375,639,857.95/543,581.19
  6. Step 6: Final answer
    x = 394,376.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.