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Finding the Fourth Proportional to 670,408.01, 925,166.68 and 394,777.83

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Solution

The fourth proportional to 670,408.01, 925,166.68 and 394,777.83 is: 544,795.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,408.01 : 925,166.68 = 394,777.83 : x
  2. Step 2: Convert to fraction form
    670,408.01/925,166.68 = 394,777.83/x
  3. Step 3: Cross multiply
    670,408.01x = 925,166.68 × 394,777.83
  4. Step 4: Simplify right side
    670,408.01x = 365,235,294,318.70
  5. Step 5: Solve for x
    x = 365,235,294,318.70/670,408.01
  6. Step 6: Final answer
    x = 544,795.54

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.