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Finding the Fourth Proportional to 965,306.80, 1,448,305.80 and 404,513.20

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Solution

The fourth proportional to 965,306.80, 1,448,305.80 and 404,513.20 is: 606,914.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,306.80 : 1,448,305.80 = 404,513.20 : x
  2. Step 2: Convert to fraction form
    965,306.80/1,448,305.80 = 404,513.20/x
  3. Step 3: Cross multiply
    965,306.80x = 1,448,305.80 × 404,513.20
  4. Step 4: Simplify right side
    965,306.80x = 585,858,813,736.56
  5. Step 5: Solve for x
    x = 585,858,813,736.56/965,306.80
  6. Step 6: Final answer
    x = 606,914.62

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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.