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Finding the Fourth Proportional to 440,364.52, 660,546.78 and 191,041

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Solution

The fourth proportional to 440,364.52, 660,546.78 and 191,041 is: 286,561.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,364.52 : 660,546.78 = 191,041 : x
  2. Step 2: Convert to fraction form
    440,364.52/660,546.78 = 191,041/x
  3. Step 3: Cross multiply
    440,364.52x = 660,546.78 × 191,041
  4. Step 4: Simplify right side
    440,364.52x = 126,191,517,397.98
  5. Step 5: Solve for x
    x = 126,191,517,397.98/440,364.52
  6. Step 6: Final answer
    x = 286,561.50

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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.