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Finding the Fourth Proportional to 355,177.20, 533,932.20 and 303,855.60

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Solution

The fourth proportional to 355,177.20, 533,932.20 and 303,855.60 is: 456,781.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,177.20 : 533,932.20 = 303,855.60 : x
  2. Step 2: Convert to fraction form
    355,177.20/533,932.20 = 303,855.60/x
  3. Step 3: Cross multiply
    355,177.20x = 533,932.20 × 303,855.60
  4. Step 4: Simplify right side
    355,177.20x = 162,238,288,990.32
  5. Step 5: Solve for x
    x = 162,238,288,990.32/355,177.20
  6. Step 6: Final answer
    x = 456,781.26

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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.