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Finding the Fourth Proportional to 322,538.16, 445,119.12 and 179,301.12

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Solution

The fourth proportional to 322,538.16, 445,119.12 and 179,301.12 is: 247,444.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,538.16 : 445,119.12 = 179,301.12 : x
  2. Step 2: Convert to fraction form
    322,538.16/445,119.12 = 179,301.12/x
  3. Step 3: Cross multiply
    322,538.16x = 445,119.12 × 179,301.12
  4. Step 4: Simplify right side
    322,538.16x = 79,810,356,749.41
  5. Step 5: Solve for x
    x = 79,810,356,749.41/322,538.16
  6. Step 6: Final answer
    x = 247,444.70

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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.