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Finding the Fourth Proportional to 531,146.62, 796,717.77 and 215,600.86

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Solution

The fourth proportional to 531,146.62, 796,717.77 and 215,600.86 is: 323,400.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,146.62 : 796,717.77 = 215,600.86 : x
  2. Step 2: Convert to fraction form
    531,146.62/796,717.77 = 215,600.86/x
  3. Step 3: Cross multiply
    531,146.62x = 796,717.77 × 215,600.86
  4. Step 4: Simplify right side
    531,146.62x = 171,773,036,389.28
  5. Step 5: Solve for x
    x = 171,773,036,389.28/531,146.62
  6. Step 6: Final answer
    x = 323,400.41

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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.