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Finding the Fourth Proportional to 1,257,226.56, 1,734,972.56 and 684,270.84

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Solution

The fourth proportional to 1,257,226.56, 1,734,972.56 and 684,270.84 is: 944,293.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,226.56 : 1,734,972.56 = 684,270.84 : x
  2. Step 2: Convert to fraction form
    1,257,226.56/1,734,972.56 = 684,270.84/x
  3. Step 3: Cross multiply
    1,257,226.56x = 1,734,972.56 × 684,270.84
  4. Step 4: Simplify right side
    1,257,226.56x = 1,187,191,131,008.15
  5. Step 5: Solve for x
    x = 1,187,191,131,008.15/1,257,226.56
  6. Step 6: Final answer
    x = 944,293.71

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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.