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Finding the Fourth Proportional to 764,722, 1,054,885.92 and 458,716.96

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Solution

The fourth proportional to 764,722, 1,054,885.92 and 458,716.96 is: 632,771.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,722 : 1,054,885.92 = 458,716.96 : x
  2. Step 2: Convert to fraction form
    764,722/1,054,885.92 = 458,716.96/x
  3. Step 3: Cross multiply
    764,722x = 1,054,885.92 × 458,716.96
  4. Step 4: Simplify right side
    764,722x = 483,894,062,369.20
  5. Step 5: Solve for x
    x = 483,894,062,369.20/764,722
  6. Step 6: Final answer
    x = 632,771.21

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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.