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Finding the Fourth Proportional to 322,785.74, 445,498.38 and 186,796.26

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Solution

The fourth proportional to 322,785.74, 445,498.38 and 186,796.26 is: 257,810.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,785.74 : 445,498.38 = 186,796.26 : x
  2. Step 2: Convert to fraction form
    322,785.74/445,498.38 = 186,796.26/x
  3. Step 3: Cross multiply
    322,785.74x = 445,498.38 × 186,796.26
  4. Step 4: Simplify right side
    322,785.74x = 83,217,431,220.06
  5. Step 5: Solve for x
    x = 83,217,431,220.06/322,785.74
  6. Step 6: Final answer
    x = 257,810.12

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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.