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Finding the Fourth Proportional to 483,260.76, 666,124.32 and 328,163.40

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Solution

The fourth proportional to 483,260.76, 666,124.32 and 328,163.40 is: 452,338.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,260.76 : 666,124.32 = 328,163.40 : x
  2. Step 2: Convert to fraction form
    483,260.76/666,124.32 = 328,163.40/x
  3. Step 3: Cross multiply
    483,260.76x = 666,124.32 × 328,163.40
  4. Step 4: Simplify right side
    483,260.76x = 218,597,621,673.89
  5. Step 5: Solve for x
    x = 218,597,621,673.89/483,260.76
  6. Step 6: Final answer
    x = 452,338.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.