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Finding the Fourth Proportional to 339,879.64, 468,341.94 and 262,931.24

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Solution

The fourth proportional to 339,879.64, 468,341.94 and 262,931.24 is: 362,309.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,879.64 : 468,341.94 = 262,931.24 : x
  2. Step 2: Convert to fraction form
    339,879.64/468,341.94 = 262,931.24/x
  3. Step 3: Cross multiply
    339,879.64x = 468,341.94 × 262,931.24
  4. Step 4: Simplify right side
    339,879.64x = 123,141,727,028.21
  5. Step 5: Solve for x
    x = 123,141,727,028.21/339,879.64
  6. Step 6: Final answer
    x = 362,309.81

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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.