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Finding the Fourth Proportional to 465,408.80, 698,113.20 and 347,310.80

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Solution

The fourth proportional to 465,408.80, 698,113.20 and 347,310.80 is: 520,966.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,408.80 : 698,113.20 = 347,310.80 : x
  2. Step 2: Convert to fraction form
    465,408.80/698,113.20 = 347,310.80/x
  3. Step 3: Cross multiply
    465,408.80x = 698,113.20 × 347,310.80
  4. Step 4: Simplify right side
    465,408.80x = 242,462,253,982.56
  5. Step 5: Solve for x
    x = 242,462,253,982.56/465,408.80
  6. Step 6: Final answer
    x = 520,966.20

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Similar ratio
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1.5x scale

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.