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Finding the Fourth Proportional to 347,561.67, 479,642.40 and 196,658.67

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Solution

The fourth proportional to 347,561.67, 479,642.40 and 196,658.67 is: 271,393.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,561.67 : 479,642.40 = 196,658.67 : x
  2. Step 2: Convert to fraction form
    347,561.67/479,642.40 = 196,658.67/x
  3. Step 3: Cross multiply
    347,561.67x = 479,642.40 × 196,658.67
  4. Step 4: Simplify right side
    347,561.67x = 94,325,836,459.61
  5. Step 5: Solve for x
    x = 94,325,836,459.61/347,561.67
  6. Step 6: Final answer
    x = 271,393.09

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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.