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Finding the Fourth Proportional to 591,438.54, 816,165.70 and 373,763.54

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Solution

The fourth proportional to 591,438.54, 816,165.70 and 373,763.54 is: 515,781.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,438.54 : 816,165.70 = 373,763.54 : x
  2. Step 2: Convert to fraction form
    591,438.54/816,165.70 = 373,763.54/x
  3. Step 3: Cross multiply
    591,438.54x = 816,165.70 × 373,763.54
  4. Step 4: Simplify right side
    591,438.54x = 305,052,981,258.58
  5. Step 5: Solve for x
    x = 305,052,981,258.58/591,438.54
  6. Step 6: Final answer
    x = 515,781.37

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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.