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Finding the Fourth Proportional to 619,452, 928,550.52 and 419,792.64

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Solution

The fourth proportional to 619,452, 928,550.52 and 419,792.64 is: 629,263.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,452 : 928,550.52 = 419,792.64 : x
  2. Step 2: Convert to fraction form
    619,452/928,550.52 = 419,792.64/x
  3. Step 3: Cross multiply
    619,452x = 928,550.52 × 419,792.64
  4. Step 4: Simplify right side
    619,452x = 389,798,674,164.17
  5. Step 5: Solve for x
    x = 389,798,674,164.17/619,452
  6. Step 6: Final answer
    x = 629,263.73

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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.