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Finding the Fourth Proportional to 552,110.20, 827,646.90 and 432,100.60

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Solution

The fourth proportional to 552,110.20, 827,646.90 and 432,100.60 is: 647,745.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,110.20 : 827,646.90 = 432,100.60 : x
  2. Step 2: Convert to fraction form
    552,110.20/827,646.90 = 432,100.60/x
  3. Step 3: Cross multiply
    552,110.20x = 827,646.90 × 432,100.60
  4. Step 4: Simplify right side
    552,110.20x = 357,626,722,078.14
  5. Step 5: Solve for x
    x = 357,626,722,078.14/552,110.20
  6. Step 6: Final answer
    x = 647,745.18

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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.