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Finding the Fourth Proportional to 531,540.18, 797,683.86 and 480,721.14

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Solution

The fourth proportional to 531,540.18, 797,683.86 and 480,721.14 is: 721,419.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,540.18 : 797,683.86 = 480,721.14 : x
  2. Step 2: Convert to fraction form
    531,540.18/797,683.86 = 480,721.14/x
  3. Step 3: Cross multiply
    531,540.18x = 797,683.86 × 480,721.14
  4. Step 4: Simplify right side
    531,540.18x = 383,463,494,538.80
  5. Step 5: Solve for x
    x = 383,463,494,538.80/531,540.18
  6. Step 6: Final answer
    x = 721,419.58

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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.