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Finding the Fourth Proportional to 395,125.20, 590,938.20 and 332,139.60

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Solution

The fourth proportional to 395,125.20, 590,938.20 and 332,139.60 is: 496,738.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,125.20 : 590,938.20 = 332,139.60 : x
  2. Step 2: Convert to fraction form
    395,125.20/590,938.20 = 332,139.60/x
  3. Step 3: Cross multiply
    395,125.20x = 590,938.20 × 332,139.60
  4. Step 4: Simplify right side
    395,125.20x = 196,273,977,372.72
  5. Step 5: Solve for x
    x = 196,273,977,372.72/395,125.20
  6. Step 6: Final answer
    x = 496,738.70

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1.5x scale

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.