Home / 685,525.91-1,028,277.86-186,889.91

Finding the Fourth Proportional to 685,525.91, 1,028,277.86 and 186,889.91

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Solution

The fourth proportional to 685,525.91, 1,028,277.86 and 186,889.91 is: 280,331.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,525.91 : 1,028,277.86 = 186,889.91 : x
  2. Step 2: Convert to fraction form
    685,525.91/1,028,277.86 = 186,889.91/x
  3. Step 3: Cross multiply
    685,525.91x = 1,028,277.86 × 186,889.91
  4. Step 4: Simplify right side
    685,525.91x = 192,174,750,634.55
  5. Step 5: Solve for x
    x = 192,174,750,634.55/685,525.91
  6. Step 6: Final answer
    x = 280,331.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.