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Finding the Fourth Proportional to 568,299.36, 784,258.56 and 313,645.08

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Solution

The fourth proportional to 568,299.36, 784,258.56 and 313,645.08 is: 432,833.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,299.36 : 784,258.56 = 313,645.08 : x
  2. Step 2: Convert to fraction form
    568,299.36/784,258.56 = 313,645.08/x
  3. Step 3: Cross multiply
    568,299.36x = 784,258.56 × 313,645.08
  4. Step 4: Simplify right side
    568,299.36x = 245,978,838,791.89
  5. Step 5: Solve for x
    x = 245,978,838,791.89/568,299.36
  6. Step 6: Final answer
    x = 432,833.21

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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.