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Finding the Fourth Proportional to 488,989.60, 733,703.10 and 173,672.80

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Solution

The fourth proportional to 488,989.60, 733,703.10 and 173,672.80 is: 260,586.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,989.60 : 733,703.10 = 173,672.80 : x
  2. Step 2: Convert to fraction form
    488,989.60/733,703.10 = 173,672.80/x
  3. Step 3: Cross multiply
    488,989.60x = 733,703.10 × 173,672.80
  4. Step 4: Simplify right side
    488,989.60x = 127,424,271,745.68
  5. Step 5: Solve for x
    x = 127,424,271,745.68/488,989.60
  6. Step 6: Final answer
    x = 260,586.87

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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.