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Finding the Fourth Proportional to 454,971.31, 627,858.63 and 251,034.92

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Solution

The fourth proportional to 454,971.31, 627,858.63 and 251,034.92 is: 346,427.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,971.31 : 627,858.63 = 251,034.92 : x
  2. Step 2: Convert to fraction form
    454,971.31/627,858.63 = 251,034.92/x
  3. Step 3: Cross multiply
    454,971.31x = 627,858.63 × 251,034.92
  4. Step 4: Simplify right side
    454,971.31x = 157,614,437,971.30
  5. Step 5: Solve for x
    x = 157,614,437,971.30/454,971.31
  6. Step 6: Final answer
    x = 346,427.21

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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.