Home / 1,258,589.73-1,736,838.12-685,617.60

Finding the Fourth Proportional to 1,258,589.73, 1,736,838.12 and 685,617.60

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Solution

The fourth proportional to 1,258,589.73, 1,736,838.12 and 685,617.60 is: 946,143.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,589.73 : 1,736,838.12 = 685,617.60 : x
  2. Step 2: Convert to fraction form
    1,258,589.73/1,736,838.12 = 685,617.60/x
  3. Step 3: Cross multiply
    1,258,589.73x = 1,736,838.12 × 685,617.60
  4. Step 4: Simplify right side
    1,258,589.73x = 1,190,806,783,422.91
  5. Step 5: Solve for x
    x = 1,190,806,783,422.91/1,258,589.73
  6. Step 6: Final answer
    x = 946,143.73

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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.