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Finding the Fourth Proportional to 422,885.51, 583,615.73 and 239,162.83

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Solution

The fourth proportional to 422,885.51, 583,615.73 and 239,162.83 is: 330,063.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,885.51 : 583,615.73 = 239,162.83 : x
  2. Step 2: Convert to fraction form
    422,885.51/583,615.73 = 239,162.83/x
  3. Step 3: Cross multiply
    422,885.51x = 583,615.73 × 239,162.83
  4. Step 4: Simplify right side
    422,885.51x = 139,579,188,758.18
  5. Step 5: Solve for x
    x = 139,579,188,758.18/422,885.51
  6. Step 6: Final answer
    x = 330,063.78

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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.