Home / 479,583.38-661,821.86-261,791.18

Finding the Fourth Proportional to 479,583.38, 661,821.86 and 261,791.18

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Solution

The fourth proportional to 479,583.38, 661,821.86 and 261,791.18 is: 361,270.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,583.38 : 661,821.86 = 261,791.18 : x
  2. Step 2: Convert to fraction form
    479,583.38/661,821.86 = 261,791.18/x
  3. Step 3: Cross multiply
    479,583.38x = 661,821.86 × 261,791.18
  4. Step 4: Simplify right side
    479,583.38x = 173,259,125,679.20
  5. Step 5: Solve for x
    x = 173,259,125,679.20/479,583.38
  6. Step 6: Final answer
    x = 361,270.08

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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.