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Finding the Fourth Proportional to 577,073.18, 796,402.22 and 318,944.57

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Solution

The fourth proportional to 577,073.18, 796,402.22 and 318,944.57 is: 440,166.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,073.18 : 796,402.22 = 318,944.57 : x
  2. Step 2: Convert to fraction form
    577,073.18/796,402.22 = 318,944.57/x
  3. Step 3: Cross multiply
    577,073.18x = 796,402.22 × 318,944.57
  4. Step 4: Simplify right side
    577,073.18x = 254,008,163,604.95
  5. Step 5: Solve for x
    x = 254,008,163,604.95/577,073.18
  6. Step 6: Final answer
    x = 440,166.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.