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Finding the Fourth Proportional to 362,405.90, 543,608.85 and 236,434.70

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Solution

The fourth proportional to 362,405.90, 543,608.85 and 236,434.70 is: 354,652.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,405.90 : 543,608.85 = 236,434.70 : x
  2. Step 2: Convert to fraction form
    362,405.90/543,608.85 = 236,434.70/x
  3. Step 3: Cross multiply
    362,405.90x = 543,608.85 × 236,434.70
  4. Step 4: Simplify right side
    362,405.90x = 128,527,995,367.10
  5. Step 5: Solve for x
    x = 128,527,995,367.10/362,405.90
  6. Step 6: Final answer
    x = 354,652.05

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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.