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Finding the Fourth Proportional to 568,651.34, 783,803.22 and 403,134.32

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Solution

The fourth proportional to 568,651.34, 783,803.22 and 403,134.32 is: 555,662.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,651.34 : 783,803.22 = 403,134.32 : x
  2. Step 2: Convert to fraction form
    568,651.34/783,803.22 = 403,134.32/x
  3. Step 3: Cross multiply
    568,651.34x = 783,803.22 × 403,134.32
  4. Step 4: Simplify right side
    568,651.34x = 315,977,978,108.51
  5. Step 5: Solve for x
    x = 315,977,978,108.51/568,651.34
  6. Step 6: Final answer
    x = 555,662.07

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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.