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Finding the Fourth Proportional to 437,270.40, 656,197.20 and 200,491.20

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Solution

The fourth proportional to 437,270.40, 656,197.20 and 200,491.20 is: 300,870.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,270.40 : 656,197.20 = 200,491.20 : x
  2. Step 2: Convert to fraction form
    437,270.40/656,197.20 = 200,491.20/x
  3. Step 3: Cross multiply
    437,270.40x = 656,197.20 × 200,491.20
  4. Step 4: Simplify right side
    437,270.40x = 131,561,764,064.64
  5. Step 5: Solve for x
    x = 131,561,764,064.64/437,270.40
  6. Step 6: Final answer
    x = 300,870.50

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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.