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Finding the Fourth Proportional to 362,258.45, 543,389.52 and 212,393.63

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Solution

The fourth proportional to 362,258.45, 543,389.52 and 212,393.63 is: 318,591.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,258.45 : 543,389.52 = 212,393.63 : x
  2. Step 2: Convert to fraction form
    362,258.45/543,389.52 = 212,393.63/x
  3. Step 3: Cross multiply
    362,258.45x = 543,389.52 × 212,393.63
  4. Step 4: Simplify right side
    362,258.45x = 115,412,469,939.81
  5. Step 5: Solve for x
    x = 115,412,469,939.81/362,258.45
  6. Step 6: Final answer
    x = 318,591.52

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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.