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Finding the Fourth Proportional to 702,469,784.03, 969,407,544.65 and 384,937,772.54

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Solution

The fourth proportional to 702,469,784.03, 969,407,544.65 and 384,937,772.54 is: 531,213,711.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,469,784.03 : 969,407,544.65 = 384,937,772.54 : x
  2. Step 2: Convert to fraction form
    702,469,784.03/969,407,544.65 = 384,937,772.54/x
  3. Step 3: Cross multiply
    702,469,784.03x = 969,407,544.65 × 384,937,772.54
  4. Step 4: Simplify right side
    702,469,784.03x = 373,161,580,914,269,888
  5. Step 5: Solve for x
    x = 373,161,580,914,269,888/702,469,784.03
  6. Step 6: Final answer
    x = 531,213,711.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.