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Finding the Fourth Proportional to 655,425.34, 982,136.52 and 441,401.86

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Solution

The fourth proportional to 655,425.34, 982,136.52 and 441,401.86 is: 661,428.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,425.34 : 982,136.52 = 441,401.86 : x
  2. Step 2: Convert to fraction form
    655,425.34/982,136.52 = 441,401.86/x
  3. Step 3: Cross multiply
    655,425.34x = 982,136.52 × 441,401.86
  4. Step 4: Simplify right side
    655,425.34x = 433,516,886,701.93
  5. Step 5: Solve for x
    x = 433,516,886,701.93/655,425.34
  6. Step 6: Final answer
    x = 661,428.33

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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.