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Finding the Fourth Proportional to 426,995.28, 589,156.34 and 254,968.97

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Solution

The fourth proportional to 426,995.28, 589,156.34 and 254,968.97 is: 351,799.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,995.28 : 589,156.34 = 254,968.97 : x
  2. Step 2: Convert to fraction form
    426,995.28/589,156.34 = 254,968.97/x
  3. Step 3: Cross multiply
    426,995.28x = 589,156.34 × 254,968.97
  4. Step 4: Simplify right side
    426,995.28x = 150,216,580,958.14
  5. Step 5: Solve for x
    x = 150,216,580,958.14/426,995.28
  6. Step 6: Final answer
    x = 351,799.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.