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Finding the Fourth Proportional to 594,990.78, 821,004.56 and 349,986.62

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Solution

The fourth proportional to 594,990.78, 821,004.56 and 349,986.62 is: 482,932.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,990.78 : 821,004.56 = 349,986.62 : x
  2. Step 2: Convert to fraction form
    594,990.78/821,004.56 = 349,986.62/x
  3. Step 3: Cross multiply
    594,990.78x = 821,004.56 × 349,986.62
  4. Step 4: Simplify right side
    594,990.78x = 287,340,610,958.99
  5. Step 5: Solve for x
    x = 287,340,610,958.99/594,990.78
  6. Step 6: Final answer
    x = 482,932.88

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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.