Home / 800,771.23-1,105,064.26-438,195.16

Finding the Fourth Proportional to 800,771.23, 1,105,064.26 and 438,195.16

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Solution

The fourth proportional to 800,771.23, 1,105,064.26 and 438,195.16 is: 604,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,771.23 : 1,105,064.26 = 438,195.16 : x
  2. Step 2: Convert to fraction form
    800,771.23/1,105,064.26 = 438,195.16/x
  3. Step 3: Cross multiply
    800,771.23x = 1,105,064.26 × 438,195.16
  4. Step 4: Simplify right side
    800,771.23x = 484,233,810,220.98
  5. Step 5: Solve for x
    x = 484,233,810,220.98/800,771.23
  6. Step 6: Final answer
    x = 604,709.30

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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.