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Finding the Fourth Proportional to 398,507.52, 597,605.76 and 173,936.64

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Solution

The fourth proportional to 398,507.52, 597,605.76 and 173,936.64 is: 260,837.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,507.52 : 597,605.76 = 173,936.64 : x
  2. Step 2: Convert to fraction form
    398,507.52/597,605.76 = 173,936.64/x
  3. Step 3: Cross multiply
    398,507.52x = 597,605.76 × 173,936.64
  4. Step 4: Simplify right side
    398,507.52x = 103,945,537,939.05
  5. Step 5: Solve for x
    x = 103,945,537,939.05/398,507.52
  6. Step 6: Final answer
    x = 260,837.08

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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.