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Finding the Fourth Proportional to 613,187.64, 919,928.68 and 192,463.52

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Solution

The fourth proportional to 613,187.64, 919,928.68 and 192,463.52 is: 288,741.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,187.64 : 919,928.68 = 192,463.52 : x
  2. Step 2: Convert to fraction form
    613,187.64/919,928.68 = 192,463.52/x
  3. Step 3: Cross multiply
    613,187.64x = 919,928.68 × 192,463.52
  4. Step 4: Simplify right side
    613,187.64x = 177,052,706,820.95
  5. Step 5: Solve for x
    x = 177,052,706,820.95/613,187.64
  6. Step 6: Final answer
    x = 288,741.48

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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.