Home / 419,529.41-578,945.36-228,538.70

Finding the Fourth Proportional to 419,529.41, 578,945.36 and 228,538.70

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Solution

The fourth proportional to 419,529.41, 578,945.36 and 228,538.70 is: 315,380.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,529.41 : 578,945.36 = 228,538.70 : x
  2. Step 2: Convert to fraction form
    419,529.41/578,945.36 = 228,538.70/x
  3. Step 3: Cross multiply
    419,529.41x = 578,945.36 × 228,538.70
  4. Step 4: Simplify right side
    419,529.41x = 132,311,415,908.01
  5. Step 5: Solve for x
    x = 132,311,415,908.01/419,529.41
  6. Step 6: Final answer
    x = 315,380.55

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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.