Home / 1,258,698.80-1,736,999.16-685,737.20

Finding the Fourth Proportional to 1,258,698.80, 1,736,999.16 and 685,737.20

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Solution

The fourth proportional to 1,258,698.80, 1,736,999.16 and 685,737.20 is: 946,314.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,698.80 : 1,736,999.16 = 685,737.20 : x
  2. Step 2: Convert to fraction form
    1,258,698.80/1,736,999.16 = 685,737.20/x
  3. Step 3: Cross multiply
    1,258,698.80x = 1,736,999.16 × 685,737.20
  4. Step 4: Simplify right side
    1,258,698.80x = 1,191,124,940,380.75
  5. Step 5: Solve for x
    x = 1,191,124,940,380.75/1,258,698.80
  6. Step 6: Final answer
    x = 946,314.51

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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.