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Finding the Fourth Proportional to 329,112.40, 493,684.80 and 171,648.40

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Solution

The fourth proportional to 329,112.40, 493,684.80 and 171,648.40 is: 257,481.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,112.40 : 493,684.80 = 171,648.40 : x
  2. Step 2: Convert to fraction form
    329,112.40/493,684.80 = 171,648.40/x
  3. Step 3: Cross multiply
    329,112.40x = 493,684.80 × 171,648.40
  4. Step 4: Simplify right side
    329,112.40x = 84,740,206,024.32
  5. Step 5: Solve for x
    x = 84,740,206,024.32/329,112.40
  6. Step 6: Final answer
    x = 257,481.05

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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.