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Finding the Fourth Proportional to 347,119.51, 479,069.30 and 194,166.20

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Solution

The fourth proportional to 347,119.51, 479,069.30 and 194,166.20 is: 267,974.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,119.51 : 479,069.30 = 194,166.20 : x
  2. Step 2: Convert to fraction form
    347,119.51/479,069.30 = 194,166.20/x
  3. Step 3: Cross multiply
    347,119.51x = 479,069.30 × 194,166.20
  4. Step 4: Simplify right side
    347,119.51x = 93,019,065,517.66
  5. Step 5: Solve for x
    x = 93,019,065,517.66/347,119.51
  6. Step 6: Final answer
    x = 267,974.18

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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.