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Finding the Fourth Proportional to 443,884.91, 612,560.78 and 239,935.82

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Solution

The fourth proportional to 443,884.91, 612,560.78 and 239,935.82 is: 331,111.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,884.91 : 612,560.78 = 239,935.82 : x
  2. Step 2: Convert to fraction form
    443,884.91/612,560.78 = 239,935.82/x
  3. Step 3: Cross multiply
    443,884.91x = 612,560.78 × 239,935.82
  4. Step 4: Simplify right side
    443,884.91x = 146,975,273,132.07
  5. Step 5: Solve for x
    x = 146,975,273,132.07/443,884.91
  6. Step 6: Final answer
    x = 331,111.22

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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.