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Finding the Fourth Proportional to 528,793.30, 793,321.17 and 247,982.50

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Solution

The fourth proportional to 528,793.30, 793,321.17 and 247,982.50 is: 372,035.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,793.30 : 793,321.17 = 247,982.50 : x
  2. Step 2: Convert to fraction form
    528,793.30/793,321.17 = 247,982.50/x
  3. Step 3: Cross multiply
    528,793.30x = 793,321.17 × 247,982.50
  4. Step 4: Simplify right side
    528,793.30x = 196,729,767,039.53
  5. Step 5: Solve for x
    x = 196,729,767,039.53/528,793.30
  6. Step 6: Final answer
    x = 372,035.29

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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.