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Finding the Fourth Proportional to 347,491.50, 479,535.03 and 196,588.50

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Solution

The fourth proportional to 347,491.50, 479,535.03 and 196,588.50 is: 271,290.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,491.50 : 479,535.03 = 196,588.50 : x
  2. Step 2: Convert to fraction form
    347,491.50/479,535.03 = 196,588.50/x
  3. Step 3: Cross multiply
    347,491.50x = 479,535.03 × 196,588.50
  4. Step 4: Simplify right side
    347,491.50x = 94,271,072,245.16
  5. Step 5: Solve for x
    x = 94,271,072,245.16/347,491.50
  6. Step 6: Final answer
    x = 271,290.30

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1.5x scale

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.