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Finding the Fourth Proportional to 665,408.40, 996,557.40 and 652,045.20

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Solution

The fourth proportional to 665,408.40, 996,557.40 and 652,045.20 is: 976,543.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,408.40 : 996,557.40 = 652,045.20 : x
  2. Step 2: Convert to fraction form
    665,408.40/996,557.40 = 652,045.20/x
  3. Step 3: Cross multiply
    665,408.40x = 996,557.40 × 652,045.20
  4. Step 4: Simplify right side
    665,408.40x = 649,800,469,194.48
  5. Step 5: Solve for x
    x = 649,800,469,194.48/665,408.40
  6. Step 6: Final answer
    x = 976,543.83

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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.