Home / 669,204.12-923,440.32-397,225.56

Finding the Fourth Proportional to 669,204.12, 923,440.32 and 397,225.56

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Solution

The fourth proportional to 669,204.12, 923,440.32 and 397,225.56 is: 548,134.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,204.12 : 923,440.32 = 397,225.56 : x
  2. Step 2: Convert to fraction form
    669,204.12/923,440.32 = 397,225.56/x
  3. Step 3: Cross multiply
    669,204.12x = 923,440.32 × 397,225.56
  4. Step 4: Simplify right side
    669,204.12x = 366,814,098,238.58
  5. Step 5: Solve for x
    x = 366,814,098,238.58/669,204.12
  6. Step 6: Final answer
    x = 548,134.85

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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.