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Finding the Fourth Proportional to 385,754.94, 532,350.39 and 220,179.60

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Solution

The fourth proportional to 385,754.94, 532,350.39 and 220,179.60 is: 303,852.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,754.94 : 532,350.39 = 220,179.60 : x
  2. Step 2: Convert to fraction form
    385,754.94/532,350.39 = 220,179.60/x
  3. Step 3: Cross multiply
    385,754.94x = 532,350.39 × 220,179.60
  4. Step 4: Simplify right side
    385,754.94x = 117,212,695,930.04
  5. Step 5: Solve for x
    x = 117,212,695,930.04/385,754.94
  6. Step 6: Final answer
    x = 303,852.74

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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.