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Finding the Fourth Proportional to 489,108.60, 733,662.90 and 336,893.40

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Solution

The fourth proportional to 489,108.60, 733,662.90 and 336,893.40 is: 505,340.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,108.60 : 733,662.90 = 336,893.40 : x
  2. Step 2: Convert to fraction form
    489,108.60/733,662.90 = 336,893.40/x
  3. Step 3: Cross multiply
    489,108.60x = 733,662.90 × 336,893.40
  4. Step 4: Simplify right side
    489,108.60x = 247,166,188,834.86
  5. Step 5: Solve for x
    x = 247,166,188,834.86/489,108.60
  6. Step 6: Final answer
    x = 505,340.10

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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.