Home / 509,821.93-764,569.17-168,188.56

Finding the Fourth Proportional to 509,821.93, 764,569.17 and 168,188.56

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Solution

The fourth proportional to 509,821.93, 764,569.17 and 168,188.56 is: 252,228.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,821.93 : 764,569.17 = 168,188.56 : x
  2. Step 2: Convert to fraction form
    509,821.93/764,569.17 = 168,188.56/x
  3. Step 3: Cross multiply
    509,821.93x = 764,569.17 × 168,188.56
  4. Step 4: Simplify right side
    509,821.93x = 128,591,787,722.70
  5. Step 5: Solve for x
    x = 128,591,787,722.70/509,821.93
  6. Step 6: Final answer
    x = 252,228.83

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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.