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Finding the Fourth Proportional to 351,714.81, 485,302.53 and 196,668.91

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Solution

The fourth proportional to 351,714.81, 485,302.53 and 196,668.91 is: 271,367.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,714.81 : 485,302.53 = 196,668.91 : x
  2. Step 2: Convert to fraction form
    351,714.81/485,302.53 = 196,668.91/x
  3. Step 3: Cross multiply
    351,714.81x = 485,302.53 × 196,668.91
  4. Step 4: Simplify right side
    351,714.81x = 95,443,919,595.34
  5. Step 5: Solve for x
    x = 95,443,919,595.34/351,714.81
  6. Step 6: Final answer
    x = 271,367.36

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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.