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Finding the Fourth Proportional to 666,312.68, 999,469.02 and 192,998.19

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Solution

The fourth proportional to 666,312.68, 999,469.02 and 192,998.19 is: 289,497.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,312.68 : 999,469.02 = 192,998.19 : x
  2. Step 2: Convert to fraction form
    666,312.68/999,469.02 = 192,998.19/x
  3. Step 3: Cross multiply
    666,312.68x = 999,469.02 × 192,998.19
  4. Step 4: Simplify right side
    666,312.68x = 192,895,716,292.83
  5. Step 5: Solve for x
    x = 192,895,716,292.83/666,312.68
  6. Step 6: Final answer
    x = 289,497.29

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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.