Home / 1,258,516.45-1,736,743.80-685,556.65

Finding the Fourth Proportional to 1,258,516.45, 1,736,743.80 and 685,556.65

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Solution

The fourth proportional to 1,258,516.45, 1,736,743.80 and 685,556.65 is: 946,063.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,516.45 : 1,736,743.80 = 685,556.65 : x
  2. Step 2: Convert to fraction form
    1,258,516.45/1,736,743.80 = 685,556.65/x
  3. Step 3: Cross multiply
    1,258,516.45x = 1,736,743.80 × 685,556.65
  4. Step 4: Simplify right side
    1,258,516.45x = 1,190,636,261,436.27
  5. Step 5: Solve for x
    x = 1,190,636,261,436.27/1,258,516.45
  6. Step 6: Final answer
    x = 946,063.33

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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.