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Finding the Fourth Proportional to 360,991.40, 498,152.43 and 199,836.83

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Solution

The fourth proportional to 360,991.40, 498,152.43 and 199,836.83 is: 275,766.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,991.40 : 498,152.43 = 199,836.83 : x
  2. Step 2: Convert to fraction form
    360,991.40/498,152.43 = 199,836.83/x
  3. Step 3: Cross multiply
    360,991.40x = 498,152.43 × 199,836.83
  4. Step 4: Simplify right side
    360,991.40x = 99,549,203,713.38
  5. Step 5: Solve for x
    x = 99,549,203,713.38/360,991.40
  6. Step 6: Final answer
    x = 275,766.14

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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.