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Finding the Fourth Proportional to 262,299.60, 393,546.60 and 84,812.40

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Solution

The fourth proportional to 262,299.60, 393,546.60 and 84,812.40 is: 127,250.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,299.60 : 393,546.60 = 84,812.40 : x
  2. Step 2: Convert to fraction form
    262,299.60/393,546.60 = 84,812.40/x
  3. Step 3: Cross multiply
    262,299.60x = 393,546.60 × 84,812.40
  4. Step 4: Simplify right side
    262,299.60x = 33,377,631,657.84
  5. Step 5: Solve for x
    x = 33,377,631,657.84/262,299.60
  6. Step 6: Final answer
    x = 127,250.03

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1.5x scale

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.