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Finding the Fourth Proportional to 568,383.64, 784,369.50 and 313,734.88

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Solution

The fourth proportional to 568,383.64, 784,369.50 and 313,734.88 is: 432,954.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,383.64 : 784,369.50 = 313,734.88 : x
  2. Step 2: Convert to fraction form
    568,383.64/784,369.50 = 313,734.88/x
  3. Step 3: Cross multiply
    568,383.64x = 784,369.50 × 313,734.88
  4. Step 4: Simplify right side
    568,383.64x = 246,084,070,958.16
  5. Step 5: Solve for x
    x = 246,084,070,958.16/568,383.64
  6. Step 6: Final answer
    x = 432,954.18

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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.