Home / 1,229,490.69-1,696,704.57-685,660.86

Finding the Fourth Proportional to 1,229,490.69, 1,696,704.57 and 685,660.86

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Solution

The fourth proportional to 1,229,490.69, 1,696,704.57 and 685,660.86 is: 946,216.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,490.69 : 1,696,704.57 = 685,660.86 : x
  2. Step 2: Convert to fraction form
    1,229,490.69/1,696,704.57 = 685,660.86/x
  3. Step 3: Cross multiply
    1,229,490.69x = 1,696,704.57 × 685,660.86
  4. Step 4: Simplify right side
    1,229,490.69x = 1,163,363,914,632.13
  5. Step 5: Solve for x
    x = 1,163,363,914,632.13/1,229,490.69
  6. Step 6: Final answer
    x = 946,216.12

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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.