Home / 451,204.15-622,428.80-305,960.81

Finding the Fourth Proportional to 451,204.15, 622,428.80 and 305,960.81

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Solution

The fourth proportional to 451,204.15, 622,428.80 and 305,960.81 is: 422,067.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,204.15 : 622,428.80 = 305,960.81 : x
  2. Step 2: Convert to fraction form
    451,204.15/622,428.80 = 305,960.81/x
  3. Step 3: Cross multiply
    451,204.15x = 622,428.80 × 305,960.81
  4. Step 4: Simplify right side
    451,204.15x = 190,438,817,554.57
  5. Step 5: Solve for x
    x = 190,438,817,554.57/451,204.15
  6. Step 6: Final answer
    x = 422,067.97

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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.