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Finding the Fourth Proportional to 516,449.52, 774,722.88 and 179,437.68

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Solution

The fourth proportional to 516,449.52, 774,722.88 and 179,437.68 is: 269,173.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,449.52 : 774,722.88 = 179,437.68 : x
  2. Step 2: Convert to fraction form
    516,449.52/774,722.88 = 179,437.68/x
  3. Step 3: Cross multiply
    516,449.52x = 774,722.88 × 179,437.68
  4. Step 4: Simplify right side
    516,449.52x = 139,014,476,230.12
  5. Step 5: Solve for x
    x = 139,014,476,230.12/516,449.52
  6. Step 6: Final answer
    x = 269,173.41

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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.