Home / 394,126.11-543,733.02-291,007.44

Finding the Fourth Proportional to 394,126.11, 543,733.02 and 291,007.44

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Solution

The fourth proportional to 394,126.11, 543,733.02 and 291,007.44 is: 401,471.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,126.11 : 543,733.02 = 291,007.44 : x
  2. Step 2: Convert to fraction form
    394,126.11/543,733.02 = 291,007.44/x
  3. Step 3: Cross multiply
    394,126.11x = 543,733.02 × 291,007.44
  4. Step 4: Simplify right side
    394,126.11x = 158,230,354,193.67
  5. Step 5: Solve for x
    x = 158,230,354,193.67/394,126.11
  6. Step 6: Final answer
    x = 401,471.38

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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.