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Finding the Fourth Proportional to 337,616.20, 506,424.30 and 218,643.40

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Solution

The fourth proportional to 337,616.20, 506,424.30 and 218,643.40 is: 327,965.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,616.20 : 506,424.30 = 218,643.40 : x
  2. Step 2: Convert to fraction form
    337,616.20/506,424.30 = 218,643.40/x
  3. Step 3: Cross multiply
    337,616.20x = 506,424.30 × 218,643.40
  4. Step 4: Simplify right side
    337,616.20x = 110,726,330,794.62
  5. Step 5: Solve for x
    x = 110,726,330,794.62/337,616.20
  6. Step 6: Final answer
    x = 327,965.10

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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.