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Finding the Fourth Proportional to 618,544.62, 853,577.09 and 363,912.18

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Solution

The fourth proportional to 618,544.62, 853,577.09 and 363,912.18 is: 502,190.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,544.62 : 853,577.09 = 363,912.18 : x
  2. Step 2: Convert to fraction form
    618,544.62/853,577.09 = 363,912.18/x
  3. Step 3: Cross multiply
    618,544.62x = 853,577.09 × 363,912.18
  4. Step 4: Simplify right side
    618,544.62x = 310,627,099,619.96
  5. Step 5: Solve for x
    x = 310,627,099,619.96/618,544.62
  6. Step 6: Final answer
    x = 502,190.29

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1.5x scale

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.