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Finding the Fourth Proportional to 572,906.15, 858,950.44 and 269,130.77

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Solution

The fourth proportional to 572,906.15, 858,950.44 and 269,130.77 is: 403,504.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,906.15 : 858,950.44 = 269,130.77 : x
  2. Step 2: Convert to fraction form
    572,906.15/858,950.44 = 269,130.77/x
  3. Step 3: Cross multiply
    572,906.15x = 858,950.44 × 269,130.77
  4. Step 4: Simplify right side
    572,906.15x = 231,169,993,309.04
  5. Step 5: Solve for x
    x = 231,169,993,309.04/572,906.15
  6. Step 6: Final answer
    x = 403,504.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.