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Finding the Fourth Proportional to 644,403.20, 965,654.40 and 467,283.20

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Solution

The fourth proportional to 644,403.20, 965,654.40 and 467,283.20 is: 700,235.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,403.20 : 965,654.40 = 467,283.20 : x
  2. Step 2: Convert to fraction form
    644,403.20/965,654.40 = 467,283.20/x
  3. Step 3: Cross multiply
    644,403.20x = 965,654.40 × 467,283.20
  4. Step 4: Simplify right side
    644,403.20x = 451,234,078,126.08
  5. Step 5: Solve for x
    x = 451,234,078,126.08/644,403.20
  6. Step 6: Final answer
    x = 700,235.63

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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.