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Finding the Fourth Proportional to 358,755.09, 538,133.32 and 336,833.15

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Solution

The fourth proportional to 358,755.09, 538,133.32 and 336,833.15 is: 505,250.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,755.09 : 538,133.32 = 336,833.15 : x
  2. Step 2: Convert to fraction form
    358,755.09/538,133.32 = 336,833.15/x
  3. Step 3: Cross multiply
    358,755.09x = 538,133.32 × 336,833.15
  4. Step 4: Simplify right side
    358,755.09x = 181,261,141,295.56
  5. Step 5: Solve for x
    x = 181,261,141,295.56/358,755.09
  6. Step 6: Final answer
    x = 505,250.37

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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.