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Finding the Fourth Proportional to 307,640.55, 461,460.83 and 307,640.55

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Solution

The fourth proportional to 307,640.55, 461,460.83 and 307,640.55 is: 461,460.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,640.55 : 461,460.83 = 307,640.55 : x
  2. Step 2: Convert to fraction form
    307,640.55/461,460.83 = 307,640.55/x
  3. Step 3: Cross multiply
    307,640.55x = 461,460.83 × 307,640.55
  4. Step 4: Simplify right side
    307,640.55x = 141,964,062,006.45
  5. Step 5: Solve for x
    x = 141,964,062,006.45/307,640.55
  6. Step 6: Final answer
    x = 461,460.83

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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.