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Finding the Fourth Proportional to 449,525.25, 620,362.67 and 258,538.41

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Solution

The fourth proportional to 449,525.25, 620,362.67 and 258,538.41 is: 356,793.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,525.25 : 620,362.67 = 258,538.41 : x
  2. Step 2: Convert to fraction form
    449,525.25/620,362.67 = 258,538.41/x
  3. Step 3: Cross multiply
    449,525.25x = 620,362.67 × 258,538.41
  4. Step 4: Simplify right side
    449,525.25x = 160,387,577,032.46
  5. Step 5: Solve for x
    x = 160,387,577,032.46/449,525.25
  6. Step 6: Final answer
    x = 356,793.25

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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.