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Finding the Fourth Proportional to 308,536.64, 425,790.24 and 174,409.28

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Solution

The fourth proportional to 308,536.64, 425,790.24 and 174,409.28 is: 240,690.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,536.64 : 425,790.24 = 174,409.28 : x
  2. Step 2: Convert to fraction form
    308,536.64/425,790.24 = 174,409.28/x
  3. Step 3: Cross multiply
    308,536.64x = 425,790.24 × 174,409.28
  4. Step 4: Simplify right side
    308,536.64x = 74,261,769,189.43
  5. Step 5: Solve for x
    x = 74,261,769,189.43/308,536.64
  6. Step 6: Final answer
    x = 240,690.28

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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.