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Finding the Fourth Proportional to 265,005.40, 396,989.70 and 181,024.60

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Solution

The fourth proportional to 265,005.40, 396,989.70 and 181,024.60 is: 271,182.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,005.40 : 396,989.70 = 181,024.60 : x
  2. Step 2: Convert to fraction form
    265,005.40/396,989.70 = 181,024.60/x
  3. Step 3: Cross multiply
    265,005.40x = 396,989.70 × 181,024.60
  4. Step 4: Simplify right side
    265,005.40x = 71,864,901,646.62
  5. Step 5: Solve for x
    x = 71,864,901,646.62/265,005.40
  6. Step 6: Final answer
    x = 271,182.78

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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.