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Finding the Fourth Proportional to 591,960.60, 887,940.90 and 218,129.40

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Solution

The fourth proportional to 591,960.60, 887,940.90 and 218,129.40 is: 327,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,960.60 : 887,940.90 = 218,129.40 : x
  2. Step 2: Convert to fraction form
    591,960.60/887,940.90 = 218,129.40/x
  3. Step 3: Cross multiply
    591,960.60x = 887,940.90 × 218,129.40
  4. Step 4: Simplify right side
    591,960.60x = 193,686,015,752.46
  5. Step 5: Solve for x
    x = 193,686,015,752.46/591,960.60
  6. Step 6: Final answer
    x = 327,194.10

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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.