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Finding the Fourth Proportional to 347,506, 479,555.04 and 196,603

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Solution

The fourth proportional to 347,506, 479,555.04 and 196,603 is: 271,310.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,506 : 479,555.04 = 196,603 : x
  2. Step 2: Convert to fraction form
    347,506/479,555.04 = 196,603/x
  3. Step 3: Cross multiply
    347,506x = 479,555.04 × 196,603
  4. Step 4: Simplify right side
    347,506x = 94,281,959,529.12
  5. Step 5: Solve for x
    x = 94,281,959,529.12/347,506
  6. Step 6: Final answer
    x = 271,310.31

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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.