Home / 411,916.77-617,439.20-187,434.84

Finding the Fourth Proportional to 411,916.77, 617,439.20 and 187,434.84

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Solution

The fourth proportional to 411,916.77, 617,439.20 and 187,434.84 is: 280,953.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,916.77 : 617,439.20 = 187,434.84 : x
  2. Step 2: Convert to fraction form
    411,916.77/617,439.20 = 187,434.84/x
  3. Step 3: Cross multiply
    411,916.77x = 617,439.20 × 187,434.84
  4. Step 4: Simplify right side
    411,916.77x = 115,729,616,724.55
  5. Step 5: Solve for x
    x = 115,729,616,724.55/411,916.77
  6. Step 6: Final answer
    x = 280,953.88

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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.