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Finding the Fourth Proportional to 441,633.80, 662,486.70 and 188,916.20

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Solution

The fourth proportional to 441,633.80, 662,486.70 and 188,916.20 is: 283,389.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,633.80 : 662,486.70 = 188,916.20 : x
  2. Step 2: Convert to fraction form
    441,633.80/662,486.70 = 188,916.20/x
  3. Step 3: Cross multiply
    441,633.80x = 662,486.70 × 188,916.20
  4. Step 4: Simplify right side
    441,633.80x = 125,154,469,914.54
  5. Step 5: Solve for x
    x = 125,154,469,914.54/441,633.80
  6. Step 6: Final answer
    x = 283,389.70

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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.