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Finding the Fourth Proportional to 481,782.56, 721,885.44 and 291,666.68

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Solution

The fourth proportional to 481,782.56, 721,885.44 and 291,666.68 is: 437,022.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,782.56 : 721,885.44 = 291,666.68 : x
  2. Step 2: Convert to fraction form
    481,782.56/721,885.44 = 291,666.68/x
  3. Step 3: Cross multiply
    481,782.56x = 721,885.44 × 291,666.68
  4. Step 4: Simplify right side
    481,782.56x = 210,549,926,015.71
  5. Step 5: Solve for x
    x = 210,549,926,015.71/481,782.56
  6. Step 6: Final answer
    x = 437,022.73

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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.