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Finding the Fourth Proportional to 336,990,547.80, 505,485,821.70 and 275,768,544.60

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Solution

The fourth proportional to 336,990,547.80, 505,485,821.70 and 275,768,544.60 is: 413,652,816.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,990,547.80 : 505,485,821.70 = 275,768,544.60 : x
  2. Step 2: Convert to fraction form
    336,990,547.80/505,485,821.70 = 275,768,544.60/x
  3. Step 3: Cross multiply
    336,990,547.80x = 505,485,821.70 × 275,768,544.60
  4. Step 4: Simplify right side
    336,990,547.80x = 139,397,089,366,144,112
  5. Step 5: Solve for x
    x = 139,397,089,366,144,112/336,990,547.80
  6. Step 6: Final answer
    x = 413,652,816.90

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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.