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Finding the Fourth Proportional to 531,012.72, 796,192.08 and 260,797.20

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Solution

The fourth proportional to 531,012.72, 796,192.08 and 260,797.20 is: 391,035.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,012.72 : 796,192.08 = 260,797.20 : x
  2. Step 2: Convert to fraction form
    531,012.72/796,192.08 = 260,797.20/x
  3. Step 3: Cross multiply
    531,012.72x = 796,192.08 × 260,797.20
  4. Step 4: Simplify right side
    531,012.72x = 207,644,665,126.18
  5. Step 5: Solve for x
    x = 207,644,665,126.18/531,012.72
  6. Step 6: Final answer
    x = 391,035.20

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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.