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Finding the Fourth Proportional to 568,063.19, 783,996.64 and 326,345.31

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Solution

The fourth proportional to 568,063.19, 783,996.64 and 326,345.31 is: 450,396.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,063.19 : 783,996.64 = 326,345.31 : x
  2. Step 2: Convert to fraction form
    568,063.19/783,996.64 = 326,345.31/x
  3. Step 3: Cross multiply
    568,063.19x = 783,996.64 × 326,345.31
  4. Step 4: Simplify right side
    568,063.19x = 255,853,625,703.90
  5. Step 5: Solve for x
    x = 255,853,625,703.90/568,063.19
  6. Step 6: Final answer
    x = 450,396.42

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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.