Home / 925,531.80-1,388,025.36-419,800.20

Finding the Fourth Proportional to 925,531.80, 1,388,025.36 and 419,800.20

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Solution

The fourth proportional to 925,531.80, 1,388,025.36 and 419,800.20 is: 629,576.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,531.80 : 1,388,025.36 = 419,800.20 : x
  2. Step 2: Convert to fraction form
    925,531.80/1,388,025.36 = 419,800.20/x
  3. Step 3: Cross multiply
    925,531.80x = 1,388,025.36 × 419,800.20
  4. Step 4: Simplify right side
    925,531.80x = 582,693,323,733.07
  5. Step 5: Solve for x
    x = 582,693,323,733.07/925,531.80
  6. Step 6: Final answer
    x = 629,576.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.