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Finding the Fourth Proportional to 355,902.20, 533,853.30 and 190,014.20

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Solution

The fourth proportional to 355,902.20, 533,853.30 and 190,014.20 is: 285,021.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,902.20 : 533,853.30 = 190,014.20 : x
  2. Step 2: Convert to fraction form
    355,902.20/533,853.30 = 190,014.20/x
  3. Step 3: Cross multiply
    355,902.20x = 533,853.30 × 190,014.20
  4. Step 4: Simplify right side
    355,902.20x = 101,439,707,716.86
  5. Step 5: Solve for x
    x = 101,439,707,716.86/355,902.20
  6. Step 6: Final answer
    x = 285,021.30

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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.