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Finding the Fourth Proportional to 437,533.40, 656,300.10 and 331,245.20

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Solution

The fourth proportional to 437,533.40, 656,300.10 and 331,245.20 is: 496,867.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,533.40 : 656,300.10 = 331,245.20 : x
  2. Step 2: Convert to fraction form
    437,533.40/656,300.10 = 331,245.20/x
  3. Step 3: Cross multiply
    437,533.40x = 656,300.10 × 331,245.20
  4. Step 4: Simplify right side
    437,533.40x = 217,396,257,884.52
  5. Step 5: Solve for x
    x = 217,396,257,884.52/437,533.40
  6. Step 6: Final answer
    x = 496,867.80

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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.