Home / 388,071.30-582,203.06-185,821.30

Finding the Fourth Proportional to 388,071.30, 582,203.06 and 185,821.30

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Solution

The fourth proportional to 388,071.30, 582,203.06 and 185,821.30 is: 278,777.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,071.30 : 582,203.06 = 185,821.30 : x
  2. Step 2: Convert to fraction form
    388,071.30/582,203.06 = 185,821.30/x
  3. Step 3: Cross multiply
    388,071.30x = 582,203.06 × 185,821.30
  4. Step 4: Simplify right side
    388,071.30x = 108,185,731,767.30
  5. Step 5: Solve for x
    x = 108,185,731,767.30/388,071.30
  6. Step 6: Final answer
    x = 278,777.97

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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.