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Finding the Fourth Proportional to 275,946.64, 380,505 and 186,367.12

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Solution

The fourth proportional to 275,946.64, 380,505 and 186,367.12 is: 256,983.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,946.64 : 380,505 = 186,367.12 : x
  2. Step 2: Convert to fraction form
    275,946.64/380,505 = 186,367.12/x
  3. Step 3: Cross multiply
    275,946.64x = 380,505 × 186,367.12
  4. Step 4: Simplify right side
    275,946.64x = 70,913,620,995.60
  5. Step 5: Solve for x
    x = 70,913,620,995.60/275,946.64
  6. Step 6: Final answer
    x = 256,983.09

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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.