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Finding the Fourth Proportional to 273,447.20, 409,976.40 and 104,902.40

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Solution

The fourth proportional to 273,447.20, 409,976.40 and 104,902.40 is: 157,279.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,447.20 : 409,976.40 = 104,902.40 : x
  2. Step 2: Convert to fraction form
    273,447.20/409,976.40 = 104,902.40/x
  3. Step 3: Cross multiply
    273,447.20x = 409,976.40 × 104,902.40
  4. Step 4: Simplify right side
    273,447.20x = 43,007,508,303.36
  5. Step 5: Solve for x
    x = 43,007,508,303.36/273,447.20
  6. Step 6: Final answer
    x = 157,279.02

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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.