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Finding the Fourth Proportional to 491,278.40, 736,485.60 and 332,993.60

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Solution

The fourth proportional to 491,278.40, 736,485.60 and 332,993.60 is: 499,197.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,278.40 : 736,485.60 = 332,993.60 : x
  2. Step 2: Convert to fraction form
    491,278.40/736,485.60 = 332,993.60/x
  3. Step 3: Cross multiply
    491,278.40x = 736,485.60 × 332,993.60
  4. Step 4: Simplify right side
    491,278.40x = 245,244,991,292.16
  5. Step 5: Solve for x
    x = 245,244,991,292.16/491,278.40
  6. Step 6: Final answer
    x = 499,197.59

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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.