Home / 689,158.53-1,033,737.84-215,880.75

Finding the Fourth Proportional to 689,158.53, 1,033,737.84 and 215,880.75

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Solution

The fourth proportional to 689,158.53, 1,033,737.84 and 215,880.75 is: 323,821.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,158.53 : 1,033,737.84 = 215,880.75 : x
  2. Step 2: Convert to fraction form
    689,158.53/1,033,737.84 = 215,880.75/x
  3. Step 3: Cross multiply
    689,158.53x = 1,033,737.84 × 215,880.75
  4. Step 4: Simplify right side
    689,158.53x = 223,164,100,202.58
  5. Step 5: Solve for x
    x = 223,164,100,202.58/689,158.53
  6. Step 6: Final answer
    x = 323,821.14

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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.