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Finding the Fourth Proportional to 511,361.69, 767,153.25 and 195,818.60

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Solution

The fourth proportional to 511,361.69, 767,153.25 and 195,818.60 is: 293,770.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,361.69 : 767,153.25 = 195,818.60 : x
  2. Step 2: Convert to fraction form
    511,361.69/767,153.25 = 195,818.60/x
  3. Step 3: Cross multiply
    511,361.69x = 767,153.25 × 195,818.60
  4. Step 4: Simplify right side
    511,361.69x = 150,222,875,400.45
  5. Step 5: Solve for x
    x = 150,222,875,400.45/511,361.69
  6. Step 6: Final answer
    x = 293,770.30

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1.5x scale

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.