Home / 1,229,789.60-1,697,111.98-685,960.61

Finding the Fourth Proportional to 1,229,789.60, 1,697,111.98 and 685,960.61

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Solution

The fourth proportional to 1,229,789.60, 1,697,111.98 and 685,960.61 is: 946,626.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,789.60 : 1,697,111.98 = 685,960.61 : x
  2. Step 2: Convert to fraction form
    1,229,789.60/1,697,111.98 = 685,960.61/x
  3. Step 3: Cross multiply
    1,229,789.60x = 1,697,111.98 × 685,960.61
  4. Step 4: Simplify right side
    1,229,789.60x = 1,164,151,965,609.30
  5. Step 5: Solve for x
    x = 1,164,151,965,609.30/1,229,789.60
  6. Step 6: Final answer
    x = 946,626.94

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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.