Home / 1,258,578.51-1,736,841.31-685,606.38

Finding the Fourth Proportional to 1,258,578.51, 1,736,841.31 and 685,606.38

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Solution

The fourth proportional to 1,258,578.51, 1,736,841.31 and 685,606.38 is: 946,138.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,578.51 : 1,736,841.31 = 685,606.38 : x
  2. Step 2: Convert to fraction form
    1,258,578.51/1,736,841.31 = 685,606.38/x
  3. Step 3: Cross multiply
    1,258,578.51x = 1,736,841.31 × 685,606.38
  4. Step 4: Simplify right side
    1,258,578.51x = 1,190,789,483,183.56
  5. Step 5: Solve for x
    x = 1,190,789,483,183.56/1,258,578.51
  6. Step 6: Final answer
    x = 946,138.42

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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.