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Finding the Fourth Proportional to 322,431.51, 444,920.13 and 186,444.93

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Solution

The fourth proportional to 322,431.51, 444,920.13 and 186,444.93 is: 257,273.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,431.51 : 444,920.13 = 186,444.93 : x
  2. Step 2: Convert to fraction form
    322,431.51/444,920.13 = 186,444.93/x
  3. Step 3: Cross multiply
    322,431.51x = 444,920.13 × 186,444.93
  4. Step 4: Simplify right side
    322,431.51x = 82,953,102,493.44
  5. Step 5: Solve for x
    x = 82,953,102,493.44/322,431.51
  6. Step 6: Final answer
    x = 257,273.56

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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.