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Finding the Fourth Proportional to 606,864.80, 910,515.90 and 252,133.40

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Solution

The fourth proportional to 606,864.80, 910,515.90 and 252,133.40 is: 378,290.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,864.80 : 910,515.90 = 252,133.40 : x
  2. Step 2: Convert to fraction form
    606,864.80/910,515.90 = 252,133.40/x
  3. Step 3: Cross multiply
    606,864.80x = 910,515.90 × 252,133.40
  4. Step 4: Simplify right side
    606,864.80x = 229,571,469,621.06
  5. Step 5: Solve for x
    x = 229,571,469,621.06/606,864.80
  6. Step 6: Final answer
    x = 378,290.96

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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.