Home / 866,300.64-1,299,636.26-259,136.52

Finding the Fourth Proportional to 866,300.64, 1,299,636.26 and 259,136.52

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Solution

The fourth proportional to 866,300.64, 1,299,636.26 and 259,136.52 is: 388,760.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,300.64 : 1,299,636.26 = 259,136.52 : x
  2. Step 2: Convert to fraction form
    866,300.64/1,299,636.26 = 259,136.52/x
  3. Step 3: Cross multiply
    866,300.64x = 1,299,636.26 × 259,136.52
  4. Step 4: Simplify right side
    866,300.64x = 336,783,217,682.22
  5. Step 5: Solve for x
    x = 336,783,217,682.22/866,300.64
  6. Step 6: Final answer
    x = 388,760.21

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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.