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Finding the Fourth Proportional to 372,650.82, 514,232.19 and 211,509.15

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Solution

The fourth proportional to 372,650.82, 514,232.19 and 211,509.15 is: 291,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,650.82 : 514,232.19 = 211,509.15 : x
  2. Step 2: Convert to fraction form
    372,650.82/514,232.19 = 211,509.15/x
  3. Step 3: Cross multiply
    372,650.82x = 514,232.19 × 211,509.15
  4. Step 4: Simplify right side
    372,650.82x = 108,764,813,409.54
  5. Step 5: Solve for x
    x = 108,764,813,409.54/372,650.82
  6. Step 6: Final answer
    x = 291,867.90

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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.