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Finding the Fourth Proportional to 326,690.63, 490,054.41 and 116,328.59

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Solution

The fourth proportional to 326,690.63, 490,054.41 and 116,328.59 is: 174,499.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,690.63 : 490,054.41 = 116,328.59 : x
  2. Step 2: Convert to fraction form
    326,690.63/490,054.41 = 116,328.59/x
  3. Step 3: Cross multiply
    326,690.63x = 490,054.41 × 116,328.59
  4. Step 4: Simplify right side
    326,690.63x = 57,007,338,538.58
  5. Step 5: Solve for x
    x = 57,007,338,538.58/326,690.63
  6. Step 6: Final answer
    x = 174,499.46

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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.