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Finding the Fourth Proportional to 372,004.80, 556,840.80 and 267,028.80

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Solution

The fourth proportional to 372,004.80, 556,840.80 and 267,028.80 is: 399,705.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,004.80 : 556,840.80 = 267,028.80 : x
  2. Step 2: Convert to fraction form
    372,004.80/556,840.80 = 267,028.80/x
  3. Step 3: Cross multiply
    372,004.80x = 556,840.80 × 267,028.80
  4. Step 4: Simplify right side
    372,004.80x = 148,692,530,615.04
  5. Step 5: Solve for x
    x = 148,692,530,615.04/372,004.80
  6. Step 6: Final answer
    x = 399,705.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.