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Finding the Fourth Proportional to 372,005.80, 556,842.30 and 267,029.80

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Solution

The fourth proportional to 372,005.80, 556,842.30 and 267,029.80 is: 399,707.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,005.80 : 556,842.30 = 267,029.80 : x
  2. Step 2: Convert to fraction form
    372,005.80/556,842.30 = 267,029.80/x
  3. Step 3: Cross multiply
    372,005.80x = 556,842.30 × 267,029.80
  4. Step 4: Simplify right side
    372,005.80x = 148,693,488,000.54
  5. Step 5: Solve for x
    x = 148,693,488,000.54/372,005.80
  6. Step 6: Final answer
    x = 399,707.45

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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.