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Finding the Fourth Proportional to 347,451.85, 479,461.33 and 194,464.31

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Solution

The fourth proportional to 347,451.85, 479,461.33 and 194,464.31 is: 268,348.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,451.85 : 479,461.33 = 194,464.31 : x
  2. Step 2: Convert to fraction form
    347,451.85/479,461.33 = 194,464.31/x
  3. Step 3: Cross multiply
    347,451.85x = 479,461.33 × 194,464.31
  4. Step 4: Simplify right side
    347,451.85x = 93,238,117,422.62
  5. Step 5: Solve for x
    x = 93,238,117,422.62/347,451.85
  6. Step 6: Final answer
    x = 268,348.31

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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.