Home / 411,917.06-617,439.65-187,435.14

Finding the Fourth Proportional to 411,917.06, 617,439.65 and 187,435.14

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Solution

The fourth proportional to 411,917.06, 617,439.65 and 187,435.14 is: 280,954.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,917.06 : 617,439.65 = 187,435.14 : x
  2. Step 2: Convert to fraction form
    411,917.06/617,439.65 = 187,435.14/x
  3. Step 3: Cross multiply
    411,917.06x = 617,439.65 × 187,435.14
  4. Step 4: Simplify right side
    411,917.06x = 115,729,883,986.73
  5. Step 5: Solve for x
    x = 115,729,883,986.73/411,917.06
  6. Step 6: Final answer
    x = 280,954.33

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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.