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Finding the Fourth Proportional to 666,171.50, 999,265.76 and 192,857.32

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Solution

The fourth proportional to 666,171.50, 999,265.76 and 192,857.32 is: 289,288.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,171.50 : 999,265.76 = 192,857.32 : x
  2. Step 2: Convert to fraction form
    666,171.50/999,265.76 = 192,857.32/x
  3. Step 3: Cross multiply
    666,171.50x = 999,265.76 × 192,857.32
  4. Step 4: Simplify right side
    666,171.50x = 192,715,716,441.36
  5. Step 5: Solve for x
    x = 192,715,716,441.36/666,171.50
  6. Step 6: Final answer
    x = 289,288.44

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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.