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Finding the Fourth Proportional to 807,739, 1,114,687.56 and 445,176.16

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Solution

The fourth proportional to 807,739, 1,114,687.56 and 445,176.16 is: 614,347.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,739 : 1,114,687.56 = 445,176.16 : x
  2. Step 2: Convert to fraction form
    807,739/1,114,687.56 = 445,176.16/x
  3. Step 3: Cross multiply
    807,739x = 1,114,687.56 × 445,176.16
  4. Step 4: Simplify right side
    807,739x = 496,232,327,560.57
  5. Step 5: Solve for x
    x = 496,232,327,560.57/807,739
  6. Step 6: Final answer
    x = 614,347.37

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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.