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Finding the Fourth Proportional to 619,906.97, 928,972.60 and 353,116.67

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Solution

The fourth proportional to 619,906.97, 928,972.60 and 353,116.67 is: 529,169.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,906.97 : 928,972.60 = 353,116.67 : x
  2. Step 2: Convert to fraction form
    619,906.97/928,972.60 = 353,116.67/x
  3. Step 3: Cross multiply
    619,906.97x = 928,972.60 × 353,116.67
  4. Step 4: Simplify right side
    619,906.97x = 328,035,705,505.59
  5. Step 5: Solve for x
    x = 328,035,705,505.59/619,906.97
  6. Step 6: Final answer
    x = 529,169.25

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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.