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Finding the Fourth Proportional to 567,806.69, 783,620.35 and 326,135.90

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Solution

The fourth proportional to 567,806.69, 783,620.35 and 326,135.90 is: 450,094.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,806.69 : 783,620.35 = 326,135.90 : x
  2. Step 2: Convert to fraction form
    567,806.69/783,620.35 = 326,135.90/x
  3. Step 3: Cross multiply
    567,806.69x = 783,620.35 × 326,135.90
  4. Step 4: Simplify right side
    567,806.69x = 255,566,729,249.28
  5. Step 5: Solve for x
    x = 255,566,729,249.28/567,806.69
  6. Step 6: Final answer
    x = 450,094.61

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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.