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Finding the Fourth Proportional to 891,558.33, 1,229,425.49 and 762,922.49

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Solution

The fourth proportional to 891,558.33, 1,229,425.49 and 762,922.49 is: 1,052,041.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,558.33 : 1,229,425.49 = 762,922.49 : x
  2. Step 2: Convert to fraction form
    891,558.33/1,229,425.49 = 762,922.49/x
  3. Step 3: Cross multiply
    891,558.33x = 1,229,425.49 × 762,922.49
  4. Step 4: Simplify right side
    891,558.33x = 937,956,346,138.53
  5. Step 5: Solve for x
    x = 937,956,346,138.53/891,558.33
  6. Step 6: Final answer
    x = 1,052,041.48

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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.