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Finding the Fourth Proportional to 347,311.67, 479,315.84 and 194,365.17

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Solution

The fourth proportional to 347,311.67, 479,315.84 and 194,365.17 is: 268,238.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,311.67 : 479,315.84 = 194,365.17 : x
  2. Step 2: Convert to fraction form
    347,311.67/479,315.84 = 194,365.17/x
  3. Step 3: Cross multiply
    347,311.67x = 479,315.84 × 194,365.17
  4. Step 4: Simplify right side
    347,311.67x = 93,162,303,753.47
  5. Step 5: Solve for x
    x = 93,162,303,753.47/347,311.67
  6. Step 6: Final answer
    x = 268,238.34

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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.