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Finding the Fourth Proportional to 347,354, 479,348.52 and 196,447.76

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Solution

The fourth proportional to 347,354, 479,348.52 and 196,447.76 is: 271,097.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,354 : 479,348.52 = 196,447.76 : x
  2. Step 2: Convert to fraction form
    347,354/479,348.52 = 196,447.76/x
  3. Step 3: Cross multiply
    347,354x = 479,348.52 × 196,447.76
  4. Step 4: Simplify right side
    347,354x = 94,166,943,013.32
  5. Step 5: Solve for x
    x = 94,166,943,013.32/347,354
  6. Step 6: Final answer
    x = 271,097.91

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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.