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Finding the Fourth Proportional to 449,009.45, 673,156.55 and 259,254.57

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Solution

The fourth proportional to 449,009.45, 673,156.55 and 259,254.57 is: 388,675.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,009.45 : 673,156.55 = 259,254.57 : x
  2. Step 2: Convert to fraction form
    449,009.45/673,156.55 = 259,254.57/x
  3. Step 3: Cross multiply
    449,009.45x = 673,156.55 × 259,254.57
  4. Step 4: Simplify right side
    449,009.45x = 174,518,910,616.66
  5. Step 5: Solve for x
    x = 174,518,910,616.66/449,009.45
  6. Step 6: Final answer
    x = 388,675.37

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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.