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Finding the Fourth Proportional to 515,588.64, 773,198.42 and 178,538.81

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Solution

The fourth proportional to 515,588.64, 773,198.42 and 178,538.81 is: 267,744.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,588.64 : 773,198.42 = 178,538.81 : x
  2. Step 2: Convert to fraction form
    515,588.64/773,198.42 = 178,538.81/x
  3. Step 3: Cross multiply
    515,588.64x = 773,198.42 × 178,538.81
  4. Step 4: Simplify right side
    515,588.64x = 138,045,921,041.99
  5. Step 5: Solve for x
    x = 138,045,921,041.99/515,588.64
  6. Step 6: Final answer
    x = 267,744.30

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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.