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Finding the Fourth Proportional to 360,124.51, 496,958.46 and 198,976.09

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Solution

The fourth proportional to 360,124.51, 496,958.46 and 198,976.09 is: 274,579.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,124.51 : 496,958.46 = 198,976.09 : x
  2. Step 2: Convert to fraction form
    360,124.51/496,958.46 = 198,976.09/x
  3. Step 3: Cross multiply
    360,124.51x = 496,958.46 × 198,976.09
  4. Step 4: Simplify right side
    360,124.51x = 98,882,851,263.22
  5. Step 5: Solve for x
    x = 98,882,851,263.22/360,124.51
  6. Step 6: Final answer
    x = 274,579.62

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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.