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Finding the Fourth Proportional to 259,662.01, 388,468.13 and 196,663.66

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Solution

The fourth proportional to 259,662.01, 388,468.13 and 196,663.66 is: 294,219.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,662.01 : 388,468.13 = 196,663.66 : x
  2. Step 2: Convert to fraction form
    259,662.01/388,468.13 = 196,663.66/x
  3. Step 3: Cross multiply
    259,662.01x = 388,468.13 × 196,663.66
  4. Step 4: Simplify right side
    259,662.01x = 76,397,564,239.16
  5. Step 5: Solve for x
    x = 76,397,564,239.16/259,662.01
  6. Step 6: Final answer
    x = 294,219.26

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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.