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Finding the Fourth Proportional to 361,797.51, 542,645.99 and 253,398.56

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Solution

The fourth proportional to 361,797.51, 542,645.99 and 253,398.56 is: 380,062.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,797.51 : 542,645.99 = 253,398.56 : x
  2. Step 2: Convert to fraction form
    361,797.51/542,645.99 = 253,398.56/x
  3. Step 3: Cross multiply
    361,797.51x = 542,645.99 × 253,398.56
  4. Step 4: Simplify right side
    361,797.51x = 137,505,708,475.55
  5. Step 5: Solve for x
    x = 137,505,708,475.55/361,797.51
  6. Step 6: Final answer
    x = 380,062.62

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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.