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Finding the Fourth Proportional to 492,279.37, 739,960.44 and 324,875.45

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Solution

The fourth proportional to 492,279.37, 739,960.44 and 324,875.45 is: 488,330.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,279.37 : 739,960.44 = 324,875.45 : x
  2. Step 2: Convert to fraction form
    492,279.37/739,960.44 = 324,875.45/x
  3. Step 3: Cross multiply
    492,279.37x = 739,960.44 × 324,875.45
  4. Step 4: Simplify right side
    492,279.37x = 240,394,980,927.20
  5. Step 5: Solve for x
    x = 240,394,980,927.20/492,279.37
  6. Step 6: Final answer
    x = 488,330.40

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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.