Home / 855,183.22-1,280,219.23-517,201.50

Finding the Fourth Proportional to 855,183.22, 1,280,219.23 and 517,201.50

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Solution

The fourth proportional to 855,183.22, 1,280,219.23 and 517,201.50 is: 774,256.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,183.22 : 1,280,219.23 = 517,201.50 : x
  2. Step 2: Convert to fraction form
    855,183.22/1,280,219.23 = 517,201.50/x
  3. Step 3: Cross multiply
    855,183.22x = 1,280,219.23 × 517,201.50
  4. Step 4: Simplify right side
    855,183.22x = 662,131,308,622.91
  5. Step 5: Solve for x
    x = 662,131,308,622.91/855,183.22
  6. Step 6: Final answer
    x = 774,256.67

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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.