Home / 1,287,623.44-1,776,906.92-714,668.56

Finding the Fourth Proportional to 1,287,623.44, 1,776,906.92 and 714,668.56

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Solution

The fourth proportional to 1,287,623.44, 1,776,906.92 and 714,668.56 is: 986,235.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,623.44 : 1,776,906.92 = 714,668.56 : x
  2. Step 2: Convert to fraction form
    1,287,623.44/1,776,906.92 = 714,668.56/x
  3. Step 3: Cross multiply
    1,287,623.44x = 1,776,906.92 × 714,668.56
  4. Step 4: Simplify right side
    1,287,623.44x = 1,269,899,509,770.44
  5. Step 5: Solve for x
    x = 1,269,899,509,770.44/1,287,623.44
  6. Step 6: Final answer
    x = 986,235.16

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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.