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Finding the Fourth Proportional to 545,883.60, 818,940.60 and 171,944.40

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Solution

The fourth proportional to 545,883.60, 818,940.60 and 171,944.40 is: 257,952.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,883.60 : 818,940.60 = 171,944.40 : x
  2. Step 2: Convert to fraction form
    545,883.60/818,940.60 = 171,944.40/x
  3. Step 3: Cross multiply
    545,883.60x = 818,940.60 × 171,944.40
  4. Step 4: Simplify right side
    545,883.60x = 140,812,250,102.64
  5. Step 5: Solve for x
    x = 140,812,250,102.64/545,883.60
  6. Step 6: Final answer
    x = 257,952.89

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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.