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Finding the Fourth Proportional to 568,032.58, 783,889.14 and 313,392.88

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Solution

The fourth proportional to 568,032.58, 783,889.14 and 313,392.88 is: 432,484.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,032.58 : 783,889.14 = 313,392.88 : x
  2. Step 2: Convert to fraction form
    568,032.58/783,889.14 = 313,392.88/x
  3. Step 3: Cross multiply
    568,032.58x = 783,889.14 × 313,392.88
  4. Step 4: Simplify right side
    568,032.58x = 245,665,275,185.32
  5. Step 5: Solve for x
    x = 245,665,275,185.32/568,032.58
  6. Step 6: Final answer
    x = 432,484.48

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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.