Home / 669,020.22-923,214.20-397,099.98

Finding the Fourth Proportional to 669,020.22, 923,214.20 and 397,099.98

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Solution

The fourth proportional to 669,020.22, 923,214.20 and 397,099.98 is: 547,977.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,020.22 : 923,214.20 = 397,099.98 : x
  2. Step 2: Convert to fraction form
    669,020.22/923,214.20 = 397,099.98/x
  3. Step 3: Cross multiply
    669,020.22x = 923,214.20 × 397,099.98
  4. Step 4: Simplify right side
    669,020.22x = 366,608,340,355.72
  5. Step 5: Solve for x
    x = 366,608,340,355.72/669,020.22
  6. Step 6: Final answer
    x = 547,977.97

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Double scale
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Similar ratio
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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.