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Finding the Fourth Proportional to 531,197.87, 796,730.48 and 215,351.31

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Solution

The fourth proportional to 531,197.87, 796,730.48 and 215,351.31 is: 323,000.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,197.87 : 796,730.48 = 215,351.31 : x
  2. Step 2: Convert to fraction form
    531,197.87/796,730.48 = 215,351.31/x
  3. Step 3: Cross multiply
    531,197.87x = 796,730.48 × 215,351.31
  4. Step 4: Simplify right side
    531,197.87x = 171,576,952,584.93
  5. Step 5: Solve for x
    x = 171,576,952,584.93/531,197.87
  6. Step 6: Final answer
    x = 323,000.08

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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.