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Finding the Fourth Proportional to 531,539.68, 797,683.11 and 480,720.64

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Solution

The fourth proportional to 531,539.68, 797,683.11 and 480,720.64 is: 721,418.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,539.68 : 797,683.11 = 480,720.64 : x
  2. Step 2: Convert to fraction form
    531,539.68/797,683.11 = 480,720.64/x
  3. Step 3: Cross multiply
    531,539.68x = 797,683.11 × 480,720.64
  4. Step 4: Simplify right side
    531,539.68x = 383,462,735,156.39
  5. Step 5: Solve for x
    x = 383,462,735,156.39/531,539.68
  6. Step 6: Final answer
    x = 721,418.83

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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.