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Finding the Fourth Proportional to 568,649.34, 783,800.46 and 403,132.32

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Solution

The fourth proportional to 568,649.34, 783,800.46 and 403,132.32 is: 555,659.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,649.34 : 783,800.46 = 403,132.32 : x
  2. Step 2: Convert to fraction form
    568,649.34/783,800.46 = 403,132.32/x
  3. Step 3: Cross multiply
    568,649.34x = 783,800.46 × 403,132.32
  4. Step 4: Simplify right side
    568,649.34x = 315,975,297,856.87
  5. Step 5: Solve for x
    x = 315,975,297,856.87/568,649.34
  6. Step 6: Final answer
    x = 555,659.31

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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.