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Finding the Fourth Proportional to 488,442.80, 733,441.80 and 331,367.60

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Solution

The fourth proportional to 488,442.80, 733,441.80 and 331,367.60 is: 497,578.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,442.80 : 733,441.80 = 331,367.60 : x
  2. Step 2: Convert to fraction form
    488,442.80/733,441.80 = 331,367.60/x
  3. Step 3: Cross multiply
    488,442.80x = 733,441.80 × 331,367.60
  4. Step 4: Simplify right side
    488,442.80x = 243,038,849,005.68
  5. Step 5: Solve for x
    x = 243,038,849,005.68/488,442.80
  6. Step 6: Final answer
    x = 497,578.94

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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.