Home / 728,256.21-1,004,993.73-405,959.37

Finding the Fourth Proportional to 728,256.21, 1,004,993.73 and 405,959.37

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Solution

The fourth proportional to 728,256.21, 1,004,993.73 and 405,959.37 is: 560,224.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,256.21 : 1,004,993.73 = 405,959.37 : x
  2. Step 2: Convert to fraction form
    728,256.21/1,004,993.73 = 405,959.37/x
  3. Step 3: Cross multiply
    728,256.21x = 1,004,993.73 × 405,959.37
  4. Step 4: Simplify right side
    728,256.21x = 407,986,621,484.75
  5. Step 5: Solve for x
    x = 407,986,621,484.75/728,256.21
  6. Step 6: Final answer
    x = 560,224.02

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1.5x scale

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.