Home / 878,100.56-1,211,834.76-538,522.64

Finding the Fourth Proportional to 878,100.56, 1,211,834.76 and 538,522.64

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Solution

The fourth proportional to 878,100.56, 1,211,834.76 and 538,522.64 is: 743,195.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,100.56 : 1,211,834.76 = 538,522.64 : x
  2. Step 2: Convert to fraction form
    878,100.56/1,211,834.76 = 538,522.64/x
  3. Step 3: Cross multiply
    878,100.56x = 1,211,834.76 × 538,522.64
  4. Step 4: Simplify right side
    878,100.56x = 652,600,454,198.97
  5. Step 5: Solve for x
    x = 652,600,454,198.97/878,100.56
  6. Step 6: Final answer
    x = 743,195.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.