Home / 621,183.46-857,205.57-379,870.42

Finding the Fourth Proportional to 621,183.46, 857,205.57 and 379,870.42

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Solution

The fourth proportional to 621,183.46, 857,205.57 and 379,870.42 is: 524,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,183.46 : 857,205.57 = 379,870.42 : x
  2. Step 2: Convert to fraction form
    621,183.46/857,205.57 = 379,870.42/x
  3. Step 3: Cross multiply
    621,183.46x = 857,205.57 × 379,870.42
  4. Step 4: Simplify right side
    621,183.46x = 325,627,039,902.24
  5. Step 5: Solve for x
    x = 325,627,039,902.24/621,183.46
  6. Step 6: Final answer
    x = 524,204.30

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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.