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Finding the Fourth Proportional to 351,714.31, 485,301.84 and 196,668.40

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Solution

The fourth proportional to 351,714.31, 485,301.84 and 196,668.40 is: 271,366.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,714.31 : 485,301.84 = 196,668.40 : x
  2. Step 2: Convert to fraction form
    351,714.31/485,301.84 = 196,668.40/x
  3. Step 3: Cross multiply
    351,714.31x = 485,301.84 × 196,668.40
  4. Step 4: Simplify right side
    351,714.31x = 95,443,536,389.86
  5. Step 5: Solve for x
    x = 95,443,536,389.86/351,714.31
  6. Step 6: Final answer
    x = 271,366.66

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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.