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Finding the Fourth Proportional to 475,894.52, 656,734.40 and 274,690.52

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Solution

The fourth proportional to 475,894.52, 656,734.40 and 274,690.52 is: 379,072.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,894.52 : 656,734.40 = 274,690.52 : x
  2. Step 2: Convert to fraction form
    475,894.52/656,734.40 = 274,690.52/x
  3. Step 3: Cross multiply
    475,894.52x = 656,734.40 × 274,690.52
  4. Step 4: Simplify right side
    475,894.52x = 180,398,713,837.89
  5. Step 5: Solve for x
    x = 180,398,713,837.89/475,894.52
  6. Step 6: Final answer
    x = 379,072.90

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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.