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Finding the Fourth Proportional to 1,566,558, 2,161,863 and 851,166

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Solution

The fourth proportional to 1,566,558, 2,161,863 and 851,166 is: 1,174,616.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,566,558 : 2,161,863 = 851,166 : x
  2. Step 2: Convert to fraction form
    1,566,558/2,161,863 = 851,166/x
  3. Step 3: Cross multiply
    1,566,558x = 2,161,863 × 851,166
  4. Step 4: Simplify right side
    1,566,558x = 1,840,104,282,258
  5. Step 5: Solve for x
    x = 1,840,104,282,258/1,566,558
  6. Step 6: Final answer
    x = 1,174,616.12

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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.