Home / 219,023.73-328,576.11-69,301.71

Finding the Fourth Proportional to 219,023.73, 328,576.11 and 69,301.71

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Solution

The fourth proportional to 219,023.73, 328,576.11 and 69,301.71 is: 103,965.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,023.73 : 328,576.11 = 69,301.71 : x
  2. Step 2: Convert to fraction form
    219,023.73/328,576.11 = 69,301.71/x
  3. Step 3: Cross multiply
    219,023.73x = 328,576.11 × 69,301.71
  4. Step 4: Simplify right side
    219,023.73x = 22,770,886,288.15
  5. Step 5: Solve for x
    x = 22,770,886,288.15/219,023.73
  6. Step 6: Final answer
    x = 103,965.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.