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Finding the Fourth Proportional to 603,409.80, 905,059.38 and 204,054.04

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Solution

The fourth proportional to 603,409.80, 905,059.38 and 204,054.04 is: 306,062.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,409.80 : 905,059.38 = 204,054.04 : x
  2. Step 2: Convert to fraction form
    603,409.80/905,059.38 = 204,054.04/x
  3. Step 3: Cross multiply
    603,409.80x = 905,059.38 × 204,054.04
  4. Step 4: Simplify right side
    603,409.80x = 184,681,022,928.90
  5. Step 5: Solve for x
    x = 184,681,022,928.90/603,409.80
  6. Step 6: Final answer
    x = 306,062.35

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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.