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Finding the Fourth Proportional to 413,620.20, 579,855.60 and 413,620.20

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Solution

The fourth proportional to 413,620.20, 579,855.60 and 413,620.20 is: 579,855.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,620.20 : 579,855.60 = 413,620.20 : x
  2. Step 2: Convert to fraction form
    413,620.20/579,855.60 = 413,620.20/x
  3. Step 3: Cross multiply
    413,620.20x = 579,855.60 × 413,620.20
  4. Step 4: Simplify right side
    413,620.20x = 239,839,989,243.12
  5. Step 5: Solve for x
    x = 239,839,989,243.12/413,620.20
  6. Step 6: Final answer
    x = 579,855.60

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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.