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Finding the Fourth Proportional to 362,917.20, 543,792.60 and 303,430.80

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Solution

The fourth proportional to 362,917.20, 543,792.60 and 303,430.80 is: 454,658.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,917.20 : 543,792.60 = 303,430.80 : x
  2. Step 2: Convert to fraction form
    362,917.20/543,792.60 = 303,430.80/x
  3. Step 3: Cross multiply
    362,917.20x = 543,792.60 × 303,430.80
  4. Step 4: Simplify right side
    362,917.20x = 165,003,423,652.08
  5. Step 5: Solve for x
    x = 165,003,423,652.08/362,917.20
  6. Step 6: Final answer
    x = 454,658.59

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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.