Home / 319,844.20-478,724.76-235,571.20

Finding the Fourth Proportional to 319,844.20, 478,724.76 and 235,571.20

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Solution

The fourth proportional to 319,844.20, 478,724.76 and 235,571.20 is: 352,589.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,844.20 : 478,724.76 = 235,571.20 : x
  2. Step 2: Convert to fraction form
    319,844.20/478,724.76 = 235,571.20/x
  3. Step 3: Cross multiply
    319,844.20x = 478,724.76 × 235,571.20
  4. Step 4: Simplify right side
    319,844.20x = 112,773,766,182.91
  5. Step 5: Solve for x
    x = 112,773,766,182.91/319,844.20
  6. Step 6: Final answer
    x = 352,589.69

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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.