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Finding the Fourth Proportional to 568,032.81, 783,872.13 and 313,383.93

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Solution

The fourth proportional to 568,032.81, 783,872.13 and 313,383.93 is: 432,462.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,032.81 : 783,872.13 = 313,383.93 : x
  2. Step 2: Convert to fraction form
    568,032.81/783,872.13 = 313,383.93/x
  3. Step 3: Cross multiply
    568,032.81x = 783,872.13 × 313,383.93
  4. Step 4: Simplify right side
    568,032.81x = 245,652,928,716.87
  5. Step 5: Solve for x
    x = 245,652,928,716.87/568,032.81
  6. Step 6: Final answer
    x = 432,462.57

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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.