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Finding the Fourth Proportional to 362,481.60, 543,722.40 and 262,430.40

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Solution

The fourth proportional to 362,481.60, 543,722.40 and 262,430.40 is: 393,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,481.60 : 543,722.40 = 262,430.40 : x
  2. Step 2: Convert to fraction form
    362,481.60/543,722.40 = 262,430.40/x
  3. Step 3: Cross multiply
    362,481.60x = 543,722.40 × 262,430.40
  4. Step 4: Simplify right side
    362,481.60x = 142,689,286,920.96
  5. Step 5: Solve for x
    x = 142,689,286,920.96/362,481.60
  6. Step 6: Final answer
    x = 393,645.60

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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.