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Finding the Fourth Proportional to 366,393.78, 505,614.30 and 205,247.76

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Solution

The fourth proportional to 366,393.78, 505,614.30 and 205,247.76 is: 283,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,393.78 : 505,614.30 = 205,247.76 : x
  2. Step 2: Convert to fraction form
    366,393.78/505,614.30 = 205,247.76/x
  3. Step 3: Cross multiply
    366,393.78x = 505,614.30 × 205,247.76
  4. Step 4: Simplify right side
    366,393.78x = 103,776,202,498.97
  5. Step 5: Solve for x
    x = 103,776,202,498.97/366,393.78
  6. Step 6: Final answer
    x = 283,236.80

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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.