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Finding the Fourth Proportional to 372,853.80, 558,886.86 and 267,615.72

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Solution

The fourth proportional to 372,853.80, 558,886.86 and 267,615.72 is: 401,140.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,853.80 : 558,886.86 = 267,615.72 : x
  2. Step 2: Convert to fraction form
    372,853.80/558,886.86 = 267,615.72/x
  3. Step 3: Cross multiply
    372,853.80x = 558,886.86 × 267,615.72
  4. Step 4: Simplify right side
    372,853.80x = 149,566,909,437.44
  5. Step 5: Solve for x
    x = 149,566,909,437.44/372,853.80
  6. Step 6: Final answer
    x = 401,140.90

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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.