Home / 414,136.40-620,614.20-236,267.60

Finding the Fourth Proportional to 414,136.40, 620,614.20 and 236,267.60

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Solution

The fourth proportional to 414,136.40, 620,614.20 and 236,267.60 is: 354,064.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,136.40 : 620,614.20 = 236,267.60 : x
  2. Step 2: Convert to fraction form
    414,136.40/620,614.20 = 236,267.60/x
  3. Step 3: Cross multiply
    414,136.40x = 620,614.20 × 236,267.60
  4. Step 4: Simplify right side
    414,136.40x = 146,631,027,559.92
  5. Step 5: Solve for x
    x = 146,631,027,559.92/414,136.40
  6. Step 6: Final answer
    x = 354,064.57

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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.