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Finding the Fourth Proportional to 666,000.39, 998,914.02 and 266,645.09

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Solution

The fourth proportional to 666,000.39, 998,914.02 and 266,645.09 is: 399,932.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,000.39 : 998,914.02 = 266,645.09 : x
  2. Step 2: Convert to fraction form
    666,000.39/998,914.02 = 266,645.09/x
  3. Step 3: Cross multiply
    666,000.39x = 998,914.02 × 266,645.09
  4. Step 4: Simplify right side
    666,000.39x = 266,355,513,770.59
  5. Step 5: Solve for x
    x = 266,355,513,770.59/666,000.39
  6. Step 6: Final answer
    x = 399,932.97

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1.5x scale

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.