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Finding the Fourth Proportional to 644,272.40, 966,408.60 and 466,403.60

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Solution

The fourth proportional to 644,272.40, 966,408.60 and 466,403.60 is: 699,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,272.40 : 966,408.60 = 466,403.60 : x
  2. Step 2: Convert to fraction form
    644,272.40/966,408.60 = 466,403.60/x
  3. Step 3: Cross multiply
    644,272.40x = 966,408.60 × 466,403.60
  4. Step 4: Simplify right side
    644,272.40x = 450,736,450,110.96
  5. Step 5: Solve for x
    x = 450,736,450,110.96/644,272.40
  6. Step 6: Final answer
    x = 699,605.40

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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.