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Finding the Fourth Proportional to 573,998.72, 860,989.44 and 258,232.64

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Solution

The fourth proportional to 573,998.72, 860,989.44 and 258,232.64 is: 387,345.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,998.72 : 860,989.44 = 258,232.64 : x
  2. Step 2: Convert to fraction form
    573,998.72/860,989.44 = 258,232.64/x
  3. Step 3: Cross multiply
    573,998.72x = 860,989.44 × 258,232.64
  4. Step 4: Simplify right side
    573,998.72x = 222,335,576,103.32
  5. Step 5: Solve for x
    x = 222,335,576,103.32/573,998.72
  6. Step 6: Final answer
    x = 387,345.07

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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.