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Finding the Fourth Proportional to 513,812.88, 770,077.44 and 247,523.76

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Solution

The fourth proportional to 513,812.88, 770,077.44 and 247,523.76 is: 370,976.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,812.88 : 770,077.44 = 247,523.76 : x
  2. Step 2: Convert to fraction form
    513,812.88/770,077.44 = 247,523.76/x
  3. Step 3: Cross multiply
    513,812.88x = 770,077.44 × 247,523.76
  4. Step 4: Simplify right side
    513,812.88x = 190,612,463,439.97
  5. Step 5: Solve for x
    x = 190,612,463,439.97/513,812.88
  6. Step 6: Final answer
    x = 370,976.42

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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.