Home / 828,512.08-1,143,213.42-465,914.38

Finding the Fourth Proportional to 828,512.08, 1,143,213.42 and 465,914.38

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Solution

The fourth proportional to 828,512.08, 1,143,213.42 and 465,914.38 is: 642,886.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,512.08 : 1,143,213.42 = 465,914.38 : x
  2. Step 2: Convert to fraction form
    828,512.08/1,143,213.42 = 465,914.38/x
  3. Step 3: Cross multiply
    828,512.08x = 1,143,213.42 × 465,914.38
  4. Step 4: Simplify right side
    828,512.08x = 532,639,571,786.98
  5. Step 5: Solve for x
    x = 532,639,571,786.98/828,512.08
  6. Step 6: Final answer
    x = 642,886.91

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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.