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Finding the Fourth Proportional to 483,219.37, 724,772.75 and 128,260.97

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Solution

The fourth proportional to 483,219.37, 724,772.75 and 128,260.97 is: 192,376.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,219.37 : 724,772.75 = 128,260.97 : x
  2. Step 2: Convert to fraction form
    483,219.37/724,772.75 = 128,260.97/x
  3. Step 3: Cross multiply
    483,219.37x = 724,772.75 × 128,260.97
  4. Step 4: Simplify right side
    483,219.37x = 92,960,052,320.70
  5. Step 5: Solve for x
    x = 92,960,052,320.70/483,219.37
  6. Step 6: Final answer
    x = 192,376.50

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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.