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Finding the Fourth Proportional to 384,149.52, 530,145.24 and 214,380.24

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Solution

The fourth proportional to 384,149.52, 530,145.24 and 214,380.24 is: 295,855.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,149.52 : 530,145.24 = 214,380.24 : x
  2. Step 2: Convert to fraction form
    384,149.52/530,145.24 = 214,380.24/x
  3. Step 3: Cross multiply
    384,149.52x = 530,145.24 × 214,380.24
  4. Step 4: Simplify right side
    384,149.52x = 113,652,663,786.06
  5. Step 5: Solve for x
    x = 113,652,663,786.06/384,149.52
  6. Step 6: Final answer
    x = 295,855.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.