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Finding the Fourth Proportional to 1,861,994.04, 2,569,553.48 and 1,057,178.04

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Solution

The fourth proportional to 1,861,994.04, 2,569,553.48 and 1,057,178.04 is: 1,458,906.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861,994.04 : 2,569,553.48 = 1,057,178.04 : x
  2. Step 2: Convert to fraction form
    1,861,994.04/2,569,553.48 = 1,057,178.04/x
  3. Step 3: Cross multiply
    1,861,994.04x = 2,569,553.48 × 1,057,178.04
  4. Step 4: Simplify right side
    1,861,994.04x = 2,716,475,511,661.58
  5. Step 5: Solve for x
    x = 2,716,475,511,661.58/1,861,994.04
  6. Step 6: Final answer
    x = 1,458,906.66

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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.