Home / 919,737.54-1,379,813.94-280,098.54

Finding the Fourth Proportional to 919,737.54, 1,379,813.94 and 280,098.54

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Solution

The fourth proportional to 919,737.54, 1,379,813.94 and 280,098.54 is: 420,211.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,737.54 : 1,379,813.94 = 280,098.54 : x
  2. Step 2: Convert to fraction form
    919,737.54/1,379,813.94 = 280,098.54/x
  3. Step 3: Cross multiply
    919,737.54x = 1,379,813.94 × 280,098.54
  4. Step 4: Simplify right side
    919,737.54x = 386,483,870,065.65
  5. Step 5: Solve for x
    x = 386,483,870,065.65/919,737.54
  6. Step 6: Final answer
    x = 420,211.04

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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.