Home / 289,529.28-434,351.97-99,996.60

Finding the Fourth Proportional to 289,529.28, 434,351.97 and 99,996.60

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Solution

The fourth proportional to 289,529.28, 434,351.97 and 99,996.60 is: 150,014.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,529.28 : 434,351.97 = 99,996.60 : x
  2. Step 2: Convert to fraction form
    289,529.28/434,351.97 = 99,996.60/x
  3. Step 3: Cross multiply
    289,529.28x = 434,351.97 × 99,996.60
  4. Step 4: Simplify right side
    289,529.28x = 43,433,720,203.30
  5. Step 5: Solve for x
    x = 43,433,720,203.30/289,529.28
  6. Step 6: Final answer
    x = 150,014.95

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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.