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Finding the Fourth Proportional to 296,617.26, 409,003.83 and 189,016.86

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Solution

The fourth proportional to 296,617.26, 409,003.83 and 189,016.86 is: 260,634.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,617.26 : 409,003.83 = 189,016.86 : x
  2. Step 2: Convert to fraction form
    296,617.26/409,003.83 = 189,016.86/x
  3. Step 3: Cross multiply
    296,617.26x = 409,003.83 × 189,016.86
  4. Step 4: Simplify right side
    296,617.26x = 77,308,619,674.57
  5. Step 5: Solve for x
    x = 77,308,619,674.57/296,617.26
  6. Step 6: Final answer
    x = 260,634.26

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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.