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Finding the Fourth Proportional to 308,987.28, 463,656.24 and 166,830.64

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Solution

The fourth proportional to 308,987.28, 463,656.24 and 166,830.64 is: 250,340.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,987.28 : 463,656.24 = 166,830.64 : x
  2. Step 2: Convert to fraction form
    308,987.28/463,656.24 = 166,830.64/x
  3. Step 3: Cross multiply
    308,987.28x = 463,656.24 × 166,830.64
  4. Step 4: Simplify right side
    308,987.28x = 77,352,067,259.19
  5. Step 5: Solve for x
    x = 77,352,067,259.19/308,987.28
  6. Step 6: Final answer
    x = 250,340.62

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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.