Home / 1,229,789.10-1,697,111.29-685,960.11

Finding the Fourth Proportional to 1,229,789.10, 1,697,111.29 and 685,960.11

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Solution

The fourth proportional to 1,229,789.10, 1,697,111.29 and 685,960.11 is: 946,626.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,789.10 : 1,697,111.29 = 685,960.11 : x
  2. Step 2: Convert to fraction form
    1,229,789.10/1,697,111.29 = 685,960.11/x
  3. Step 3: Cross multiply
    1,229,789.10x = 1,697,111.29 × 685,960.11
  4. Step 4: Simplify right side
    1,229,789.10x = 1,164,150,644,169.57
  5. Step 5: Solve for x
    x = 1,164,150,644,169.57/1,229,789.10
  6. Step 6: Final answer
    x = 946,626.25

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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.