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Finding the Fourth Proportional to 495,193.56, 686,863.26 and 482,068.42

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Solution

The fourth proportional to 495,193.56, 686,863.26 and 482,068.42 is: 668,657.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,193.56 : 686,863.26 = 482,068.42 : x
  2. Step 2: Convert to fraction form
    495,193.56/686,863.26 = 482,068.42/x
  3. Step 3: Cross multiply
    495,193.56x = 686,863.26 × 482,068.42
  4. Step 4: Simplify right side
    495,193.56x = 331,115,086,504.25
  5. Step 5: Solve for x
    x = 331,115,086,504.25/495,193.56
  6. Step 6: Final answer
    x = 668,657.90

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.