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Finding the Fourth Proportional to 363,796.92, 545,928.86 and 243,989.13

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Solution

The fourth proportional to 363,796.92, 545,928.86 and 243,989.13 is: 366,140.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,796.92 : 545,928.86 = 243,989.13 : x
  2. Step 2: Convert to fraction form
    363,796.92/545,928.86 = 243,989.13/x
  3. Step 3: Cross multiply
    363,796.92x = 545,928.86 × 243,989.13
  4. Step 4: Simplify right side
    363,796.92x = 133,200,706,373.35
  5. Step 5: Solve for x
    x = 133,200,706,373.35/363,796.92
  6. Step 6: Final answer
    x = 366,140.28

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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.