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Finding the Fourth Proportional to 360,939.53, 498,090.51 and 199,791.11

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Solution

The fourth proportional to 360,939.53, 498,090.51 and 199,791.11 is: 275,708.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,939.53 : 498,090.51 = 199,791.11 : x
  2. Step 2: Convert to fraction form
    360,939.53/498,090.51 = 199,791.11/x
  3. Step 3: Cross multiply
    360,939.53x = 498,090.51 × 199,791.11
  4. Step 4: Simplify right side
    360,939.53x = 99,514,057,118.59
  5. Step 5: Solve for x
    x = 99,514,057,118.59/360,939.53
  6. Step 6: Final answer
    x = 275,708.39

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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.