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Finding the Fourth Proportional to 568,019.93, 783,867.42 and 313,371.09

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Solution

The fourth proportional to 568,019.93, 783,867.42 and 313,371.09 is: 432,452.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,019.93 : 783,867.42 = 313,371.09 : x
  2. Step 2: Convert to fraction form
    568,019.93/783,867.42 = 313,371.09/x
  3. Step 3: Cross multiply
    568,019.93x = 783,867.42 × 313,371.09
  4. Step 4: Simplify right side
    568,019.93x = 245,641,387,820.89
  5. Step 5: Solve for x
    x = 245,641,387,820.89/568,019.93
  6. Step 6: Final answer
    x = 432,452.06

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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.