Home / 394,983.99-545,454.36-373,465.57

Finding the Fourth Proportional to 394,983.99, 545,454.36 and 373,465.57

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Solution

The fourth proportional to 394,983.99, 545,454.36 and 373,465.57 is: 515,738.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,983.99 : 545,454.36 = 373,465.57 : x
  2. Step 2: Convert to fraction form
    394,983.99/545,454.36 = 373,465.57/x
  3. Step 3: Cross multiply
    394,983.99x = 545,454.36 × 373,465.57
  4. Step 4: Simplify right side
    394,983.99x = 203,708,424,795.17
  5. Step 5: Solve for x
    x = 203,708,424,795.17/394,983.99
  6. Step 6: Final answer
    x = 515,738.44

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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.