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Finding the Fourth Proportional to 366,979.45, 550,469.18 and 307,930.45

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Solution

The fourth proportional to 366,979.45, 550,469.18 and 307,930.45 is: 461,895.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,979.45 : 550,469.18 = 307,930.45 : x
  2. Step 2: Convert to fraction form
    366,979.45/550,469.18 = 307,930.45/x
  3. Step 3: Cross multiply
    366,979.45x = 550,469.18 × 307,930.45
  4. Step 4: Simplify right side
    366,979.45x = 169,506,222,308.53
  5. Step 5: Solve for x
    x = 169,506,222,308.53/366,979.45
  6. Step 6: Final answer
    x = 461,895.68

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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.