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Finding the Fourth Proportional to 366,336,544.80, 549,504,817.20 and 343,661,728.80

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Solution

The fourth proportional to 366,336,544.80, 549,504,817.20 and 343,661,728.80 is: 515,492,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,336,544.80 : 549,504,817.20 = 343,661,728.80 : x
  2. Step 2: Convert to fraction form
    366,336,544.80/549,504,817.20 = 343,661,728.80/x
  3. Step 3: Cross multiply
    366,336,544.80x = 549,504,817.20 × 343,661,728.80
  4. Step 4: Simplify right side
    366,336,544.80x = 188,843,775,462,880,000
  5. Step 5: Solve for x
    x = 188,843,775,462,880,000/366,336,544.80
  6. Step 6: Final answer
    x = 515,492,593.20

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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.