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Finding the Fourth Proportional to 529,753.80, 794,630.70 and 489,318.60

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Solution

The fourth proportional to 529,753.80, 794,630.70 and 489,318.60 is: 733,977.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,753.80 : 794,630.70 = 489,318.60 : x
  2. Step 2: Convert to fraction form
    529,753.80/794,630.70 = 489,318.60/x
  3. Step 3: Cross multiply
    529,753.80x = 794,630.70 × 489,318.60
  4. Step 4: Simplify right side
    529,753.80x = 388,827,581,641.02
  5. Step 5: Solve for x
    x = 388,827,581,641.02/529,753.80
  6. Step 6: Final answer
    x = 733,977.90

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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.