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Finding the Fourth Proportional to 355,205.20, 533,974.20 and 303,883.60

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Solution

The fourth proportional to 355,205.20, 533,974.20 and 303,883.60 is: 456,823.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,205.20 : 533,974.20 = 303,883.60 : x
  2. Step 2: Convert to fraction form
    355,205.20/533,974.20 = 303,883.60/x
  3. Step 3: Cross multiply
    355,205.20x = 533,974.20 × 303,883.60
  4. Step 4: Simplify right side
    355,205.20x = 162,266,002,203.12
  5. Step 5: Solve for x
    x = 162,266,002,203.12/355,205.20
  6. Step 6: Final answer
    x = 456,823.27

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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.