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Finding the Fourth Proportional to 528,238.50, 792,419.38 and 191,437.80

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Solution

The fourth proportional to 528,238.50, 792,419.38 and 191,437.80 is: 287,179.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,238.50 : 792,419.38 = 191,437.80 : x
  2. Step 2: Convert to fraction form
    528,238.50/792,419.38 = 191,437.80/x
  3. Step 3: Cross multiply
    528,238.50x = 792,419.38 × 191,437.80
  4. Step 4: Simplify right side
    528,238.50x = 151,699,022,784.56
  5. Step 5: Solve for x
    x = 151,699,022,784.56/528,238.50
  6. Step 6: Final answer
    x = 287,179.04

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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.