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Finding the Fourth Proportional to 452,745.45, 624,652.48 and 271,391.21

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Solution

The fourth proportional to 452,745.45, 624,652.48 and 271,391.21 is: 374,438.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,745.45 : 624,652.48 = 271,391.21 : x
  2. Step 2: Convert to fraction form
    452,745.45/624,652.48 = 271,391.21/x
  3. Step 3: Cross multiply
    452,745.45x = 624,652.48 × 271,391.21
  4. Step 4: Simplify right side
    452,745.45x = 169,525,191,019.75
  5. Step 5: Solve for x
    x = 169,525,191,019.75/452,745.45
  6. Step 6: Final answer
    x = 374,438.20

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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.