Home / 289,494.11-434,273.25-99,933

Finding the Fourth Proportional to 289,494.11, 434,273.25 and 99,933

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Solution

The fourth proportional to 289,494.11, 434,273.25 and 99,933 is: 149,910.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,494.11 : 434,273.25 = 99,933 : x
  2. Step 2: Convert to fraction form
    289,494.11/434,273.25 = 99,933/x
  3. Step 3: Cross multiply
    289,494.11x = 434,273.25 × 99,933
  4. Step 4: Simplify right side
    289,494.11x = 43,398,228,692.25
  5. Step 5: Solve for x
    x = 43,398,228,692.25/289,494.11
  6. Step 6: Final answer
    x = 149,910.58

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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.