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Finding the Fourth Proportional to 443,717.64, 612,835.44 and 298,270.88

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Solution

The fourth proportional to 443,717.64, 612,835.44 and 298,270.88 is: 411,953.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,717.64 : 612,835.44 = 298,270.88 : x
  2. Step 2: Convert to fraction form
    443,717.64/612,835.44 = 298,270.88/x
  3. Step 3: Cross multiply
    443,717.64x = 612,835.44 × 298,270.88
  4. Step 4: Simplify right side
    443,717.64x = 182,790,965,983.99
  5. Step 5: Solve for x
    x = 182,790,965,983.99/443,717.64
  6. Step 6: Final answer
    x = 411,953.34

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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.