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Finding the Fourth Proportional to 363,796.17, 545,927.73 and 243,988.38

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Solution

The fourth proportional to 363,796.17, 545,927.73 and 243,988.38 is: 366,139.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,796.17 : 545,927.73 = 243,988.38 : x
  2. Step 2: Convert to fraction form
    363,796.17/545,927.73 = 243,988.38/x
  3. Step 3: Cross multiply
    363,796.17x = 545,927.73 × 243,988.38
  4. Step 4: Simplify right side
    363,796.17x = 133,200,022,439.78
  5. Step 5: Solve for x
    x = 133,200,022,439.78/363,796.17
  6. Step 6: Final answer
    x = 366,139.16

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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.