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Finding the Fourth Proportional to 1,206,863.82, 1,664,733.33 and 716,500.49

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Solution

The fourth proportional to 1,206,863.82, 1,664,733.33 and 716,500.49 is: 988,332.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,863.82 : 1,664,733.33 = 716,500.49 : x
  2. Step 2: Convert to fraction form
    1,206,863.82/1,664,733.33 = 716,500.49/x
  3. Step 3: Cross multiply
    1,206,863.82x = 1,664,733.33 × 716,500.49
  4. Step 4: Simplify right side
    1,206,863.82x = 1,192,782,238,340.67
  5. Step 5: Solve for x
    x = 1,192,782,238,340.67/1,206,863.82
  6. Step 6: Final answer
    x = 988,332.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.