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Finding the Fourth Proportional to 550,995.90, 825,327.45 and 432,023.10

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Solution

The fourth proportional to 550,995.90, 825,327.45 and 432,023.10 is: 647,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,995.90 : 825,327.45 = 432,023.10 : x
  2. Step 2: Convert to fraction form
    550,995.90/825,327.45 = 432,023.10/x
  3. Step 3: Cross multiply
    550,995.90x = 825,327.45 × 432,023.10
  4. Step 4: Simplify right side
    550,995.90x = 356,560,523,464.10
  5. Step 5: Solve for x
    x = 356,560,523,464.10/550,995.90
  6. Step 6: Final answer
    x = 647,120.10

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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.