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Finding the Fourth Proportional to 366,956.90, 512,689.90 and 366,956.90

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Solution

The fourth proportional to 366,956.90, 512,689.90 and 366,956.90 is: 512,689.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,956.90 : 512,689.90 = 366,956.90 : x
  2. Step 2: Convert to fraction form
    366,956.90/512,689.90 = 366,956.90/x
  3. Step 3: Cross multiply
    366,956.90x = 512,689.90 × 366,956.90
  4. Step 4: Simplify right side
    366,956.90x = 188,135,096,365.31
  5. Step 5: Solve for x
    x = 188,135,096,365.31/366,956.90
  6. Step 6: Final answer
    x = 512,689.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.