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Finding the Fourth Proportional to 484,302.80, 726,713.40 and 218,104.40

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Solution

The fourth proportional to 484,302.80, 726,713.40 and 218,104.40 is: 327,273.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,302.80 : 726,713.40 = 218,104.40 : x
  2. Step 2: Convert to fraction form
    484,302.80/726,713.40 = 218,104.40/x
  3. Step 3: Cross multiply
    484,302.80x = 726,713.40 × 218,104.40
  4. Step 4: Simplify right side
    484,302.80x = 158,499,390,078.96
  5. Step 5: Solve for x
    x = 158,499,390,078.96/484,302.80
  6. Step 6: Final answer
    x = 327,273.33

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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.