Home / 394,039.08-543,778.11-224,274.42

Finding the Fourth Proportional to 394,039.08, 543,778.11 and 224,274.42

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Solution

The fourth proportional to 394,039.08, 543,778.11 and 224,274.42 is: 309,501.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,039.08 : 543,778.11 = 224,274.42 : x
  2. Step 2: Convert to fraction form
    394,039.08/543,778.11 = 224,274.42/x
  3. Step 3: Cross multiply
    394,039.08x = 543,778.11 × 224,274.42
  4. Step 4: Simplify right side
    394,039.08x = 121,955,520,228.95
  5. Step 5: Solve for x
    x = 121,955,520,228.95/394,039.08
  6. Step 6: Final answer
    x = 309,501.08

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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.