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Finding the Fourth Proportional to 618,693.76, 928,059.84 and 294,410.80

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Solution

The fourth proportional to 618,693.76, 928,059.84 and 294,410.80 is: 441,625.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,693.76 : 928,059.84 = 294,410.80 : x
  2. Step 2: Convert to fraction form
    618,693.76/928,059.84 = 294,410.80/x
  3. Step 3: Cross multiply
    618,693.76x = 928,059.84 × 294,410.80
  4. Step 4: Simplify right side
    618,693.76x = 273,230,839,942.27
  5. Step 5: Solve for x
    x = 273,230,839,942.27/618,693.76
  6. Step 6: Final answer
    x = 441,625.34

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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.