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Finding the Fourth Proportional to 439,842.76, 606,802.59 and 267,622.66

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Solution

The fourth proportional to 439,842.76, 606,802.59 and 267,622.66 is: 369,209.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,842.76 : 606,802.59 = 267,622.66 : x
  2. Step 2: Convert to fraction form
    439,842.76/606,802.59 = 267,622.66/x
  3. Step 3: Cross multiply
    439,842.76x = 606,802.59 × 267,622.66
  4. Step 4: Simplify right side
    439,842.76x = 162,394,122,282.56
  5. Step 5: Solve for x
    x = 162,394,122,282.56/439,842.76
  6. Step 6: Final answer
    x = 369,209.49

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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.