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Finding the Fourth Proportional to 590,846.80, 885,233.40 and 485,093.20

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Solution

The fourth proportional to 590,846.80, 885,233.40 and 485,093.20 is: 726,788.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,846.80 : 885,233.40 = 485,093.20 : x
  2. Step 2: Convert to fraction form
    590,846.80/885,233.40 = 485,093.20/x
  3. Step 3: Cross multiply
    590,846.80x = 885,233.40 × 485,093.20
  4. Step 4: Simplify right side
    590,846.80x = 429,420,702,752.88
  5. Step 5: Solve for x
    x = 429,420,702,752.88/590,846.80
  6. Step 6: Final answer
    x = 726,788.57

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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.