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Finding the Fourth Proportional to 398,268.72, 596,940.84 and 161,316.72

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Solution

The fourth proportional to 398,268.72, 596,940.84 and 161,316.72 is: 241,787.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,268.72 : 596,940.84 = 161,316.72 : x
  2. Step 2: Convert to fraction form
    398,268.72/596,940.84 = 161,316.72/x
  3. Step 3: Cross multiply
    398,268.72x = 596,940.84 × 161,316.72
  4. Step 4: Simplify right side
    398,268.72x = 96,296,538,342.84
  5. Step 5: Solve for x
    x = 96,296,538,342.84/398,268.72
  6. Step 6: Final answer
    x = 241,787.85

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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.