Home / 392,629.40-589,442.43-333,838.74

Finding the Fourth Proportional to 392,629.40, 589,442.43 and 333,838.74

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Solution

The fourth proportional to 392,629.40, 589,442.43 and 333,838.74 is: 501,181.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,629.40 : 589,442.43 = 333,838.74 : x
  2. Step 2: Convert to fraction form
    392,629.40/589,442.43 = 333,838.74/x
  3. Step 3: Cross multiply
    392,629.40x = 589,442.43 × 333,838.74
  4. Step 4: Simplify right side
    392,629.40x = 196,778,721,451.16
  5. Step 5: Solve for x
    x = 196,778,721,451.16/392,629.40
  6. Step 6: Final answer
    x = 501,181.82

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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.