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Finding the Fourth Proportional to 482,159.86, 665,402.52 and 275,446.44

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Solution

The fourth proportional to 482,159.86, 665,402.52 and 275,446.44 is: 380,128.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,159.86 : 665,402.52 = 275,446.44 : x
  2. Step 2: Convert to fraction form
    482,159.86/665,402.52 = 275,446.44/x
  3. Step 3: Cross multiply
    482,159.86x = 665,402.52 × 275,446.44
  4. Step 4: Simplify right side
    482,159.86x = 183,282,755,301.03
  5. Step 5: Solve for x
    x = 183,282,755,301.03/482,159.86
  6. Step 6: Final answer
    x = 380,128.61

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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.