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Finding the Fourth Proportional to 587,249.46, 810,365.82 and 345,485.28

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Solution

The fourth proportional to 587,249.46, 810,365.82 and 345,485.28 is: 476,747.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,249.46 : 810,365.82 = 345,485.28 : x
  2. Step 2: Convert to fraction form
    587,249.46/810,365.82 = 345,485.28/x
  3. Step 3: Cross multiply
    587,249.46x = 810,365.82 × 345,485.28
  4. Step 4: Simplify right side
    587,249.46x = 279,969,462,225.13
  5. Step 5: Solve for x
    x = 279,969,462,225.13/587,249.46
  6. Step 6: Final answer
    x = 476,747.07

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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.