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Finding the Fourth Proportional to 449,131.68, 619,800.24 and 247,926.24

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Solution

The fourth proportional to 449,131.68, 619,800.24 and 247,926.24 is: 342,137.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,131.68 : 619,800.24 = 247,926.24 : x
  2. Step 2: Convert to fraction form
    449,131.68/619,800.24 = 247,926.24/x
  3. Step 3: Cross multiply
    449,131.68x = 619,800.24 × 247,926.24
  4. Step 4: Simplify right side
    449,131.68x = 153,664,743,054.30
  5. Step 5: Solve for x
    x = 153,664,743,054.30/449,131.68
  6. Step 6: Final answer
    x = 342,137.40

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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.