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Finding the Fourth Proportional to 595,352.44, 821,111.22 and 391,612.60

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Solution

The fourth proportional to 595,352.44, 821,111.22 and 391,612.60 is: 540,112.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,352.44 : 821,111.22 = 391,612.60 : x
  2. Step 2: Convert to fraction form
    595,352.44/821,111.22 = 391,612.60/x
  3. Step 3: Cross multiply
    595,352.44x = 821,111.22 × 391,612.60
  4. Step 4: Simplify right side
    595,352.44x = 321,557,499,753.37
  5. Step 5: Solve for x
    x = 321,557,499,753.37/595,352.44
  6. Step 6: Final answer
    x = 540,112.84

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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.