Home / 394,200.08-543,995.94-212,911.94

Finding the Fourth Proportional to 394,200.08, 543,995.94 and 212,911.94

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Solution

The fourth proportional to 394,200.08, 543,995.94 and 212,911.94 is: 293,818.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,200.08 : 543,995.94 = 212,911.94 : x
  2. Step 2: Convert to fraction form
    394,200.08/543,995.94 = 212,911.94/x
  3. Step 3: Cross multiply
    394,200.08x = 543,995.94 × 212,911.94
  4. Step 4: Simplify right side
    394,200.08x = 115,823,230,937.52
  5. Step 5: Solve for x
    x = 115,823,230,937.52/394,200.08
  6. Step 6: Final answer
    x = 293,818.39

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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.