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Finding the Fourth Proportional to 366,821.90, 512,500.90 and 366,821.90

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Solution

The fourth proportional to 366,821.90, 512,500.90 and 366,821.90 is: 512,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,821.90 : 512,500.90 = 366,821.90 : x
  2. Step 2: Convert to fraction form
    366,821.90/512,500.90 = 366,821.90/x
  3. Step 3: Cross multiply
    366,821.90x = 512,500.90 × 366,821.90
  4. Step 4: Simplify right side
    366,821.90x = 187,996,553,889.71
  5. Step 5: Solve for x
    x = 187,996,553,889.71/366,821.90
  6. Step 6: Final answer
    x = 512,500.90

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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.