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Finding the Fourth Proportional to 881,426.56, 1,321,903.68 and 382,672

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Solution

The fourth proportional to 881,426.56, 1,321,903.68 and 382,672 is: 573,905.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,426.56 : 1,321,903.68 = 382,672 : x
  2. Step 2: Convert to fraction form
    881,426.56/1,321,903.68 = 382,672/x
  3. Step 3: Cross multiply
    881,426.56x = 1,321,903.68 × 382,672
  4. Step 4: Simplify right side
    881,426.56x = 505,855,525,032.96
  5. Step 5: Solve for x
    x = 505,855,525,032.96/881,426.56
  6. Step 6: Final answer
    x = 573,905.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.