Home / 854,467.80-1,281,701.70-412,099.80

Finding the Fourth Proportional to 854,467.80, 1,281,701.70 and 412,099.80

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Solution

The fourth proportional to 854,467.80, 1,281,701.70 and 412,099.80 is: 618,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,467.80 : 1,281,701.70 = 412,099.80 : x
  2. Step 2: Convert to fraction form
    854,467.80/1,281,701.70 = 412,099.80/x
  3. Step 3: Cross multiply
    854,467.80x = 1,281,701.70 × 412,099.80
  4. Step 4: Simplify right side
    854,467.80x = 528,189,014,229.66
  5. Step 5: Solve for x
    x = 528,189,014,229.66/854,467.80
  6. Step 6: Final answer
    x = 618,149.70

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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.