Home / 326,028-449,919.87-190,155.78

Finding the Fourth Proportional to 326,028, 449,919.87 and 190,155.78

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Solution

The fourth proportional to 326,028, 449,919.87 and 190,155.78 is: 262,415.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,028 : 449,919.87 = 190,155.78 : x
  2. Step 2: Convert to fraction form
    326,028/449,919.87 = 190,155.78/x
  3. Step 3: Cross multiply
    326,028x = 449,919.87 × 190,155.78
  4. Step 4: Simplify right side
    326,028x = 85,554,863,817.35
  5. Step 5: Solve for x
    x = 85,554,863,817.35/326,028
  6. Step 6: Final answer
    x = 262,415.69

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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.