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Finding the Fourth Proportional to 332,375.45, 458,517.85 and 217,603.31

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Solution

The fourth proportional to 332,375.45, 458,517.85 and 217,603.31 is: 300,187.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,375.45 : 458,517.85 = 217,603.31 : x
  2. Step 2: Convert to fraction form
    332,375.45/458,517.85 = 217,603.31/x
  3. Step 3: Cross multiply
    332,375.45x = 458,517.85 × 217,603.31
  4. Step 4: Simplify right side
    332,375.45x = 99,774,999,017.49
  5. Step 5: Solve for x
    x = 99,774,999,017.49/332,375.45
  6. Step 6: Final answer
    x = 300,187.64

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1.5x scale

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.