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Finding the Fourth Proportional to 442,640.82, 610,891.64 and 270,659.58

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Solution

The fourth proportional to 442,640.82, 610,891.64 and 270,659.58 is: 373,539.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,640.82 : 610,891.64 = 270,659.58 : x
  2. Step 2: Convert to fraction form
    442,640.82/610,891.64 = 270,659.58/x
  3. Step 3: Cross multiply
    442,640.82x = 610,891.64 × 270,659.58
  4. Step 4: Simplify right side
    442,640.82x = 165,343,673,354.61
  5. Step 5: Solve for x
    x = 165,343,673,354.61/442,640.82
  6. Step 6: Final answer
    x = 373,539.14

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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.