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Finding the Fourth Proportional to 1,994,892.35, 2,752,795.35 and 1,123,688.97

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Solution

The fourth proportional to 1,994,892.35, 2,752,795.35 and 1,123,688.97 is: 1,550,602.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994,892.35 : 2,752,795.35 = 1,123,688.97 : x
  2. Step 2: Convert to fraction form
    1,994,892.35/2,752,795.35 = 1,123,688.97/x
  3. Step 3: Cross multiply
    1,994,892.35x = 2,752,795.35 × 1,123,688.97
  4. Step 4: Simplify right side
    1,994,892.35x = 3,093,285,771,462.29
  5. Step 5: Solve for x
    x = 3,093,285,771,462.29/1,994,892.35
  6. Step 6: Final answer
    x = 1,550,602.86

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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.