Home / 1,258,811.36-1,737,179.52-685,851.32

Finding the Fourth Proportional to 1,258,811.36, 1,737,179.52 and 685,851.32

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Solution

The fourth proportional to 1,258,811.36, 1,737,179.52 and 685,851.32 is: 946,485.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,811.36 : 1,737,179.52 = 685,851.32 : x
  2. Step 2: Convert to fraction form
    1,258,811.36/1,737,179.52 = 685,851.32/x
  3. Step 3: Cross multiply
    1,258,811.36x = 1,737,179.52 × 685,851.32
  4. Step 4: Simplify right side
    1,258,811.36x = 1,191,446,866,868.97
  5. Step 5: Solve for x
    x = 1,191,446,866,868.97/1,258,811.36
  6. Step 6: Final answer
    x = 946,485.63

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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.