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Finding the Fourth Proportional to 595,643.52, 821,990.72 and 327,388.80

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Solution

The fourth proportional to 595,643.52, 821,990.72 and 327,388.80 is: 451,798.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,643.52 : 821,990.72 = 327,388.80 : x
  2. Step 2: Convert to fraction form
    595,643.52/821,990.72 = 327,388.80/x
  3. Step 3: Cross multiply
    595,643.52x = 821,990.72 × 327,388.80
  4. Step 4: Simplify right side
    595,643.52x = 269,110,555,431.94
  5. Step 5: Solve for x
    x = 269,110,555,431.94/595,643.52
  6. Step 6: Final answer
    x = 451,798.01

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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.