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Finding the Fourth Proportional to 306,043.97, 422,332.25 and 170,074.44

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Solution

The fourth proportional to 306,043.97, 422,332.25 and 170,074.44 is: 234,698.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,043.97 : 422,332.25 = 170,074.44 : x
  2. Step 2: Convert to fraction form
    306,043.97/422,332.25 = 170,074.44/x
  3. Step 3: Cross multiply
    306,043.97x = 422,332.25 × 170,074.44
  4. Step 4: Simplify right side
    306,043.97x = 71,827,920,062.32
  5. Step 5: Solve for x
    x = 71,827,920,062.32/306,043.97
  6. Step 6: Final answer
    x = 234,698.04

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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.