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Finding the Fourth Proportional to 606,940.20, 910,410.30 and 186,215.40

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Solution

The fourth proportional to 606,940.20, 910,410.30 and 186,215.40 is: 279,323.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,940.20 : 910,410.30 = 186,215.40 : x
  2. Step 2: Convert to fraction form
    606,940.20/910,410.30 = 186,215.40/x
  3. Step 3: Cross multiply
    606,940.20x = 910,410.30 × 186,215.40
  4. Step 4: Simplify right side
    606,940.20x = 169,532,418,178.62
  5. Step 5: Solve for x
    x = 169,532,418,178.62/606,940.20
  6. Step 6: Final answer
    x = 279,323.10

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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.