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Finding the Fourth Proportional to 567,879.91, 783,674.94 and 326,209.30

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Solution

The fourth proportional to 567,879.91, 783,674.94 and 326,209.30 is: 450,169.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,879.91 : 783,674.94 = 326,209.30 : x
  2. Step 2: Convert to fraction form
    567,879.91/783,674.94 = 326,209.30/x
  3. Step 3: Cross multiply
    567,879.91x = 783,674.94 × 326,209.30
  4. Step 4: Simplify right side
    567,879.91x = 255,642,053,604.94
  5. Step 5: Solve for x
    x = 255,642,053,604.94/567,879.91
  6. Step 6: Final answer
    x = 450,169.22

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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.