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Finding the Fourth Proportional to 384,682.80, 577,024.20 and 171,450.30

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Solution

The fourth proportional to 384,682.80, 577,024.20 and 171,450.30 is: 257,175.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,682.80 : 577,024.20 = 171,450.30 : x
  2. Step 2: Convert to fraction form
    384,682.80/577,024.20 = 171,450.30/x
  3. Step 3: Cross multiply
    384,682.80x = 577,024.20 × 171,450.30
  4. Step 4: Simplify right side
    384,682.80x = 98,930,972,197.26
  5. Step 5: Solve for x
    x = 98,930,972,197.26/384,682.80
  6. Step 6: Final answer
    x = 257,175.45

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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.