Home / 680,566.23-939,235.64-394,091.37

Finding the Fourth Proportional to 680,566.23, 939,235.64 and 394,091.37

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Solution

The fourth proportional to 680,566.23, 939,235.64 and 394,091.37 is: 543,877.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,566.23 : 939,235.64 = 394,091.37 : x
  2. Step 2: Convert to fraction form
    680,566.23/939,235.64 = 394,091.37/x
  3. Step 3: Cross multiply
    680,566.23x = 939,235.64 × 394,091.37
  4. Step 4: Simplify right side
    680,566.23x = 370,144,658,149.97
  5. Step 5: Solve for x
    x = 370,144,658,149.97/680,566.23
  6. Step 6: Final answer
    x = 543,877.50

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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.