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Finding the Fourth Proportional to 366,972.90, 512,712.30 and 366,972.90

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Solution

The fourth proportional to 366,972.90, 512,712.30 and 366,972.90 is: 512,712.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,972.90 : 512,712.30 = 366,972.90 : x
  2. Step 2: Convert to fraction form
    366,972.90/512,712.30 = 366,972.90/x
  3. Step 3: Cross multiply
    366,972.90x = 512,712.30 × 366,972.90
  4. Step 4: Simplify right side
    366,972.90x = 188,151,519,596.67
  5. Step 5: Solve for x
    x = 188,151,519,596.67/366,972.90
  6. Step 6: Final answer
    x = 512,712.30

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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.