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Finding the Fourth Proportional to 532,187.70, 798,515.34 and 279,409.47

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Solution

The fourth proportional to 532,187.70, 798,515.34 and 279,409.47 is: 419,236.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,187.70 : 798,515.34 = 279,409.47 : x
  2. Step 2: Convert to fraction form
    532,187.70/798,515.34 = 279,409.47/x
  3. Step 3: Cross multiply
    532,187.70x = 798,515.34 × 279,409.47
  4. Step 4: Simplify right side
    532,187.70x = 223,112,747,936.27
  5. Step 5: Solve for x
    x = 223,112,747,936.27/532,187.70
  6. Step 6: Final answer
    x = 419,236.95

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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.