Home / 219,712.38-329,568.48-69,998.55

Finding the Fourth Proportional to 219,712.38, 329,568.48 and 69,998.55

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Solution

The fourth proportional to 219,712.38, 329,568.48 and 69,998.55 is: 104,997.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,712.38 : 329,568.48 = 69,998.55 : x
  2. Step 2: Convert to fraction form
    219,712.38/329,568.48 = 69,998.55/x
  3. Step 3: Cross multiply
    219,712.38x = 329,568.48 × 69,998.55
  4. Step 4: Simplify right side
    219,712.38x = 23,069,315,725.70
  5. Step 5: Solve for x
    x = 23,069,315,725.70/219,712.38
  6. Step 6: Final answer
    x = 104,997.80

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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.