Home / 1,405,999.25-2,109,358.52-408,727.25

Finding the Fourth Proportional to 1,405,999.25, 2,109,358.52 and 408,727.25

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Solution

The fourth proportional to 1,405,999.25, 2,109,358.52 and 408,727.25 is: 613,195.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,999.25 : 2,109,358.52 = 408,727.25 : x
  2. Step 2: Convert to fraction form
    1,405,999.25/2,109,358.52 = 408,727.25/x
  3. Step 3: Cross multiply
    1,405,999.25x = 2,109,358.52 × 408,727.25
  4. Step 4: Simplify right side
    1,405,999.25x = 862,152,305,100.03
  5. Step 5: Solve for x
    x = 862,152,305,100.03/1,405,999.25
  6. Step 6: Final answer
    x = 613,195.42

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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.