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Finding the Fourth Proportional to 329,109.20, 493,548.60 and 171,285.20

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Solution

The fourth proportional to 329,109.20, 493,548.60 and 171,285.20 is: 256,867.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,109.20 : 493,548.60 = 171,285.20 : x
  2. Step 2: Convert to fraction form
    329,109.20/493,548.60 = 171,285.20/x
  3. Step 3: Cross multiply
    329,109.20x = 493,548.60 × 171,285.20
  4. Step 4: Simplify right side
    329,109.20x = 84,537,570,660.72
  5. Step 5: Solve for x
    x = 84,537,570,660.72/329,109.20
  6. Step 6: Final answer
    x = 256,867.84

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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.