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Finding the Fourth Proportional to 531,887.69, 733,988.17 and 302,469.91

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Solution

The fourth proportional to 531,887.69, 733,988.17 and 302,469.91 is: 417,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,887.69 : 733,988.17 = 302,469.91 : x
  2. Step 2: Convert to fraction form
    531,887.69/733,988.17 = 302,469.91/x
  3. Step 3: Cross multiply
    531,887.69x = 733,988.17 × 302,469.91
  4. Step 4: Simplify right side
    531,887.69x = 222,009,335,720.97
  5. Step 5: Solve for x
    x = 222,009,335,720.97/531,887.69
  6. Step 6: Final answer
    x = 417,398.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.