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Finding the Fourth Proportional to 361,652.13, 542,568.39 and 255,243.93

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Solution

The fourth proportional to 361,652.13, 542,568.39 and 255,243.93 is: 382,929.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,652.13 : 542,568.39 = 255,243.93 : x
  2. Step 2: Convert to fraction form
    361,652.13/542,568.39 = 255,243.93/x
  3. Step 3: Cross multiply
    361,652.13x = 542,568.39 × 255,243.93
  4. Step 4: Simplify right side
    361,652.13x = 138,487,288,157.37
  5. Step 5: Solve for x
    x = 138,487,288,157.37/361,652.13
  6. Step 6: Final answer
    x = 382,929.55

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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.