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Finding the Fourth Proportional to 361,698.54, 499,141.53 and 200,553.66

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Solution

The fourth proportional to 361,698.54, 499,141.53 and 200,553.66 is: 276,762.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,698.54 : 499,141.53 = 200,553.66 : x
  2. Step 2: Convert to fraction form
    361,698.54/499,141.53 = 200,553.66/x
  3. Step 3: Cross multiply
    361,698.54x = 499,141.53 × 200,553.66
  4. Step 4: Simplify right side
    361,698.54x = 100,104,660,699.50
  5. Step 5: Solve for x
    x = 100,104,660,699.50/361,698.54
  6. Step 6: Final answer
    x = 276,762.69

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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.