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Finding the Fourth Proportional to 529,311.62, 793,847.75 and 155,363.78

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Solution

The fourth proportional to 529,311.62, 793,847.75 and 155,363.78 is: 233,010.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,311.62 : 793,847.75 = 155,363.78 : x
  2. Step 2: Convert to fraction form
    529,311.62/793,847.75 = 155,363.78/x
  3. Step 3: Cross multiply
    529,311.62x = 793,847.75 × 155,363.78
  4. Step 4: Simplify right side
    529,311.62x = 123,335,187,184.50
  5. Step 5: Solve for x
    x = 123,335,187,184.50/529,311.62
  6. Step 6: Final answer
    x = 233,010.54

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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.