Home / 411,719.08-616,940.94-285,604.60

Finding the Fourth Proportional to 411,719.08, 616,940.94 and 285,604.60

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Solution

The fourth proportional to 411,719.08, 616,940.94 and 285,604.60 is: 427,964.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,719.08 : 616,940.94 = 285,604.60 : x
  2. Step 2: Convert to fraction form
    411,719.08/616,940.94 = 285,604.60/x
  3. Step 3: Cross multiply
    411,719.08x = 616,940.94 × 285,604.60
  4. Step 4: Simplify right side
    411,719.08x = 176,201,170,392.32
  5. Step 5: Solve for x
    x = 176,201,170,392.32/411,719.08
  6. Step 6: Final answer
    x = 427,964.55

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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.