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Finding the Fourth Proportional to 587,236.81, 810,348.44 and 345,472.68

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Solution

The fourth proportional to 587,236.81, 810,348.44 and 345,472.68 is: 476,729.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,236.81 : 810,348.44 = 345,472.68 : x
  2. Step 2: Convert to fraction form
    587,236.81/810,348.44 = 345,472.68/x
  3. Step 3: Cross multiply
    587,236.81x = 810,348.44 × 345,472.68
  4. Step 4: Simplify right side
    587,236.81x = 279,953,247,300.62
  5. Step 5: Solve for x
    x = 279,953,247,300.62/587,236.81
  6. Step 6: Final answer
    x = 476,729.73

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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.