Home / 411,664.80-617,439.60-131,210.40

Finding the Fourth Proportional to 411,664.80, 617,439.60 and 131,210.40

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Solution

The fourth proportional to 411,664.80, 617,439.60 and 131,210.40 is: 196,797.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,664.80 : 617,439.60 = 131,210.40 : x
  2. Step 2: Convert to fraction form
    411,664.80/617,439.60 = 131,210.40/x
  3. Step 3: Cross multiply
    411,664.80x = 617,439.60 × 131,210.40
  4. Step 4: Simplify right side
    411,664.80x = 81,014,496,891.84
  5. Step 5: Solve for x
    x = 81,014,496,891.84/411,664.80
  6. Step 6: Final answer
    x = 196,797.24

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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.