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Finding the Fourth Proportional to 306,493.66, 422,954.65 and 177,437.60

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Solution

The fourth proportional to 306,493.66, 422,954.65 and 177,437.60 is: 244,860.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,493.66 : 422,954.65 = 177,437.60 : x
  2. Step 2: Convert to fraction form
    306,493.66/422,954.65 = 177,437.60/x
  3. Step 3: Cross multiply
    306,493.66x = 422,954.65 × 177,437.60
  4. Step 4: Simplify right side
    306,493.66x = 75,048,055,446.47
  5. Step 5: Solve for x
    x = 75,048,055,446.47/306,493.66
  6. Step 6: Final answer
    x = 244,860.06

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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.