Home / 414,172.54-621,259.44-125,986.72

Finding the Fourth Proportional to 414,172.54, 621,259.44 and 125,986.72

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Solution

The fourth proportional to 414,172.54, 621,259.44 and 125,986.72 is: 188,980.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,172.54 : 621,259.44 = 125,986.72 : x
  2. Step 2: Convert to fraction form
    414,172.54/621,259.44 = 125,986.72/x
  3. Step 3: Cross multiply
    414,172.54x = 621,259.44 × 125,986.72
  4. Step 4: Simplify right side
    414,172.54x = 78,270,439,114.64
  5. Step 5: Solve for x
    x = 78,270,439,114.64/414,172.54
  6. Step 6: Final answer
    x = 188,980.27

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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.