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Finding the Fourth Proportional to 482,863.80, 666,341.96 and 267,991.04

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Solution

The fourth proportional to 482,863.80, 666,341.96 and 267,991.04 is: 369,822.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,863.80 : 666,341.96 = 267,991.04 : x
  2. Step 2: Convert to fraction form
    482,863.80/666,341.96 = 267,991.04/x
  3. Step 3: Cross multiply
    482,863.80x = 666,341.96 × 267,991.04
  4. Step 4: Simplify right side
    482,863.80x = 178,573,674,856.04
  5. Step 5: Solve for x
    x = 178,573,674,856.04/482,863.80
  6. Step 6: Final answer
    x = 369,822.04

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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.